# Klaviyo Klaviyo declares [27 subprocessors](https://thirdpartyindex.com/vendors/klaviyo#subprocessors), plus 7 of its own affiliates, in [its subprocessor list](https://www.klaviyo.com/legal/subprocessors), which we last checked on 2026-11-11 ([evidence](https://thirdpartyindex.com/evidence/1017)). They include [Amazon Web Services](https://thirdpartyindex.com/vendors/amazon-web-services), [OpenAI](https://thirdpartyindex.com/vendors/openai) and [Microsoft](https://thirdpartyindex.com/vendors/microsoft). No published changes since we first read it on 2026-09-21. [12 tracked vendors](https://thirdpartyindex.com/vendors/klaviyo#used-by) name Klaviyo as a subprocessor, including [Cometly](https://thirdpartyindex.com/vendors/cometly), [Topaz Labs](https://thirdpartyindex.com/vendors/topaz-labs) and [Antavo](https://thirdpartyindex.com/vendors/antavo). Klaviyo (klaviyo.com): subprocessors, data processing agreement, security documents and changes, as monitored by Third Party Index. - Page: https://thirdpartyindex.com/vendors/klaviyo - Documents last verified: 2026-11-11 - Transparency rating: 89/100 (how much it publishes, not how secure it is): Subprocessor list 30/30; Processing locations 8/8; Purposes 7/7; Data processing addendum 12/12; Trust center 8/8; Privacy policy 6/6; security.txt 0/6 (not found); Security page 5/5; Status page 5/5; Vulnerability disclosure 0/5 (not found); Pages still reachable 8/8 - Supply chain: relies on 26 tracked vendors directly, 171 within two hops, 490 within three; 12 tracked vendors rely on it directly, 14 within two hops, 60 within three - Cite as: Klaviyo, Third Party Index, https://thirdpartyindex.com/vendors/klaviyo (data CC BY 4.0) ## Documents | Document | URL | Last verified | Last changed | |---|---|---|---| | Trust center | https://www.klaviyo.com/trust | 2026-11-11 | 2026-09-21 | | Subprocessor list | https://www.klaviyo.com/legal/subprocessors | 2026-11-11 | 2026-09-21 | | Data processing addendum | https://www.klaviyo.com/legal/data-processing-agreement | 2026-11-11 | 2026-09-21 | | Privacy policy | https://privacy.klaviyo.com/policies/?name=klaviyo-privacy-policy | 2026-11-11 | 2026-11-11 | | Terms | https://www.klaviyo.com/legal/terms-of-service | 2026-11-11 | 2026-09-21 | | Security page | https://www.klaviyo.com/security | 2026-11-11 | 2026-09-21 | | Status page | https://status.klaviyo.com/ | 2026-11-11 | 2026-11-11 | ## Subprocessors (27) As its own list states them. | Subprocessor | Purpose | Location | Listed since | |---|---|---|---| | [Ada Support, Inc.](https://thirdpartyindex.com/vendors/ada-support.md) | Customer Service Automation | DATA HOSTING LOCATION(S): United States; LOCATION(S) OF PROCESSING: United States | 2026-09-21 | | [Amazon Web Services, Inc.](https://thirdpartyindex.com/vendors/amazon-web-services.md) | Cloud Hosting Provider | DATA HOSTING LOCATION(S): United States; LOCATION(S) OF PROCESSING: United States | 2026-09-21 | | [Anthropic, PBC](https://thirdpartyindex.com/vendors/anthropic.md) (AI model provider: Anthropic) | AI Features and Functionality; Customer Success and Support Services | DATA HOSTING LOCATION(S): United States; LOCATION(S) OF PROCESSING: Asia; LOCATION(S) OF PROCESSING: Australia; LOCATION(S) OF PROCESSING: Europe; LOCATION(S) OF PROCESSING: United States | 2026-09-21 | | [Chronosphere, Inc.](https://thirdpartyindex.com/vendors/chronosphere.md) | Data Analysis | DATA HOSTING LOCATION(S): United States; LOCATION(S) OF PROCESSING: United States | 2026-09-21 | | [ClickHouse, Inc](https://thirdpartyindex.com/vendors/clickhouse.md) | Database and Analytics Service (Real-Time Storage, Querying, and Reporting) | DATA HOSTING LOCATION(S): Germany²; DATA HOSTING LOCATION(S): United States; LOCATION(S) OF PROCESSING: Germany¹; LOCATION(S) OF PROCESSING: United States | 2026-09-21 | | [Cloudflare, Inc.](https://thirdpartyindex.com/vendors/cloudflare.md) | Web Application Firewall | DATA HOSTING LOCATION(S): European Economic Area; DATA HOSTING LOCATION(S): Other Locations as required⁴; DATA HOSTING LOCATION(S): United States; LOCATION(S) OF PROCESSING: European Economic Area; LOCATION(S) OF PROCESSING: Other Locations as required³; LOCATION(S) OF PROCESSING: United States | 2026-09-21 | | Concentrix Solutions Corporation | Customer Support | DATA HOSTING LOCATION(S): United States; LOCATION(S) OF PROCESSING: Costa Rica; LOCATION(S) OF PROCESSING: Philippines; LOCATION(S) OF PROCESSING: Poland | 2026-09-21 | | [Dropbox, Inc.](https://thirdpartyindex.com/vendors/dropbox.md) | File Hosting for Professional Services and Enablement | DATA HOSTING LOCATION(S): United States; LOCATION(S) OF PROCESSING: India; LOCATION(S) OF PROCESSING: United States | 2026-09-21 | | [Fivetran, Inc.](https://thirdpartyindex.com/vendors/fivetran.md) | Automated Data Movement | DATA HOSTING LOCATION(S): United States; LOCATION(S) OF PROCESSING: United States | 2026-09-21 | | [Functional Software, Inc. (d/b/a Sentry.io)](https://thirdpartyindex.com/vendors/sentry.md) | Error Logging | DATA HOSTING LOCATION(S): United States; LOCATION(S) OF PROCESSING: United States | 2026-09-21 | | [Glean Technologies, Inc.](https://thirdpartyindex.com/vendors/glean.md) | Customer Success and Support Services | DATA HOSTING LOCATION(S): United States; LOCATION(S) OF PROCESSING: United States | 2026-09-21 | | [Infobip, Inc.](https://thirdpartyindex.com/vendors/infobip.md) | Communications Services | DATA HOSTING LOCATION(S): United States; LOCATION(S) OF PROCESSING: Bosnia and Herzegovina; LOCATION(S) OF PROCESSING: Brazil; LOCATION(S) OF PROCESSING: Colombia; LOCATION(S) OF PROCESSING: Croatia; LOCATION(S) OF PROCESSING: India; LOCATION(S) OF PROCESSING: Indonesia; LOCATION(S) OF PROCESSING: Malaysia; LOCATION(S) OF PROCESSING: Mexico; LOCATION(S) OF PROCESSING: Philippines; LOCATION(S) OF PROCESSING: Thailand; LOCATION(S) OF PROCESSING: United Kingdom; LOCATION(S) OF PROCESSING: United States | 2026-09-21 | | [Linear Orbit, Inc.](https://thirdpartyindex.com/vendors/linear.md) | Project Management and Issue Tracking | DATA HOSTING LOCATION(S): United States; LOCATION(S) OF PROCESSING: United States | 2026-09-21 | | [Loom, Inc. (Atlassian)](https://thirdpartyindex.com/vendors/atlassian.md) | Call Recording Customer Support (Customer Optional) | DATA HOSTING LOCATION(S): United States; LOCATION(S) OF PROCESSING: United States | 2026-09-21 | | [MaestroQA Inc.](https://thirdpartyindex.com/vendors/maestroqa.md) | Customer Support Quality Assurance | DATA HOSTING LOCATION(S): United States; LOCATION(S) OF PROCESSING: United States | 2026-09-21 | | [Mailgun Technologies, Inc. (d/b/a Sinch Email)](https://thirdpartyindex.com/vendors/mailgun.md) | Email Review and Analysis | DATA HOSTING LOCATION(S): United States; LOCATION(S) OF PROCESSING: United States | 2026-09-21 | | [Meta, Inc.](https://thirdpartyindex.com/vendors/meta.md) | WhatsApp Messaging | DATA HOSTING LOCATION(S): Denmark; DATA HOSTING LOCATION(S): Ireland; DATA HOSTING LOCATION(S): Singapore; DATA HOSTING LOCATION(S): Sweden; DATA HOSTING LOCATION(S): United States; LOCATION(S) OF PROCESSING: Denmark; LOCATION(S) OF PROCESSING: Ireland; LOCATION(S) OF PROCESSING: Singapore; LOCATION(S) OF PROCESSING: Sweden; LOCATION(S) OF PROCESSING: United States | 2026-09-21 | | [Microsoft Corporation](https://thirdpartyindex.com/vendors/microsoft.md) | Windows Virtual Desktops Cloud Infrastructure for Customer Support | DATA HOSTING LOCATION(S): United States; LOCATION(S) OF PROCESSING: United States | 2026-09-21 | | [OpenAI, LLC](https://thirdpartyindex.com/vendors/openai.md) (AI model provider: OpenAI) | AI Features and functionality; Customer Success and Support Services | DATA HOSTING LOCATION(S): United States; LOCATION(S) OF PROCESSING: United States | 2026-09-21 | | [Sendgrid, Inc.](https://thirdpartyindex.com/vendors/sendgrid.md) | Email Delivery | DATA HOSTING LOCATION(S): United States; LOCATION(S) OF PROCESSING: United States | 2026-09-21 | | [SendSafely, Inc.](https://thirdpartyindex.com/vendors/sendsafely.md) | File Sharing Encryption Platform (Customer Optional) | DATA HOSTING LOCATION(S): United States; LOCATION(S) OF PROCESSING: United States | 2026-09-21 | | [Slack Technologies, LLC](https://thirdpartyindex.com/vendors/slack.md) | Slack Connect for Customer Success and Support Services; Customer-Facing Notification Integration | DATA HOSTING LOCATION(S): Australia; DATA HOSTING LOCATION(S): Brazil; DATA HOSTING LOCATION(S): Canada; DATA HOSTING LOCATION(S): France; DATA HOSTING LOCATION(S): Germany; DATA HOSTING LOCATION(S): India; DATA HOSTING LOCATION(S): Ireland; DATA HOSTING LOCATION(S): Japan; DATA HOSTING LOCATION(S): Singapore; DATA HOSTING LOCATION(S): South Africa; DATA HOSTING LOCATION(S): South Korea; DATA HOSTING LOCATION(S): Sweden; DATA HOSTING LOCATION(S): Switzerland; DATA HOSTING LOCATION(S): United Arab Emirates; DATA HOSTING LOCATION(S): United Kingdom; DATA HOSTING LOCATION(S): United States⁶; LOCATION(S) OF PROCESSING: Australia; LOCATION(S) OF PROCESSING: Brazil; LOCATION(S) OF PROCESSING: Canada; LOCATION(S) OF PROCESSING: France; LOCATION(S) OF PROCESSING: Germany; LOCATION(S) OF PROCESSING: India; LOCATION(S) OF PROCESSING: Ireland; LOCATION(S) OF PROCESSING: Japan; LOCATION(S) OF PROCESSING: Singapore; LOCATION(S) OF PROCESSING: South Africa; LOCATION(S) OF PROCESSING: South Korea; LOCATION(S) OF PROCESSING: Sweden; LOCATION(S) OF PROCESSING: Switzerland; LOCATION(S) OF PROCESSING: United Arab Emirates; LOCATION(S) OF PROCESSING: United Kingdom; LOCATION(S) OF PROCESSING: United States⁵ | 2026-09-21 | | [Snowflake, Inc.](https://thirdpartyindex.com/vendors/snowflake.md) | Data Analysis | DATA HOSTING LOCATION(S): United States; LOCATION(S) OF PROCESSING: United States | 2026-09-21 | | [Splunk, Inc.](https://thirdpartyindex.com/vendors/splunk.md) | Logging Tool | DATA HOSTING LOCATION(S): United States; LOCATION(S) OF PROCESSING: United States | 2026-09-21 | | [Statsig, Inc.](https://thirdpartyindex.com/vendors/statsig.md) | Product Feature Management | DATA HOSTING LOCATION(S): United States; LOCATION(S) OF PROCESSING: United States | 2026-09-21 | | [Twilio, Inc.](https://thirdpartyindex.com/vendors/twilio.md) | Communications Services | DATA HOSTING LOCATION(S): United States; LOCATION(S) OF PROCESSING: United States | 2026-09-21 | | [Zendesk, Inc.](https://thirdpartyindex.com/vendors/zendesk.md) | Customer Success and Support Services | DATA HOSTING LOCATION(S): Other Locations as Required⁷; DATA HOSTING LOCATION(S): United States; LOCATION(S) OF PROCESSING: Argentina; LOCATION(S) OF PROCESSING: Australia; LOCATION(S) OF PROCESSING: Brazil; LOCATION(S) OF PROCESSING: Canada; LOCATION(S) OF PROCESSING: Japan; LOCATION(S) OF PROCESSING: Mexico; LOCATION(S) OF PROCESSING: Philippines; LOCATION(S) OF PROCESSING: Singapore; LOCATION(S) OF PROCESSING: United Kingdom; LOCATION(S) OF PROCESSING: United States | 2026-09-21 | Read from ([evidence](https://thirdpartyindex.com/evidence/1017)). CSV: https://thirdpartyindex.com/vendors/klaviyo/subprocessors.csv AI model providers (or a cloud provider's AI model service) among these entries: 2. All vendors that list one: https://thirdpartyindex.com/ai ### Its own affiliates (7) - Klaviyo Ltd. (DATA HOSTING LOCATION(S): United States; LOCATION(S) OF PROCESSING: United Kingdom) - Klaviyo Australia Pty Ltd (DATA HOSTING LOCATION(S): United States; LOCATION(S) OF PROCESSING: Australia) - Klaviyo Canada Inc. (DATA HOSTING LOCATION(S): Canada; LOCATION(S) OF PROCESSING: Canada) - Klaviyo France SAS (DATA HOSTING LOCATION(S): United States; LOCATION(S) OF PROCESSING: France) - Klaviyo Germany GmbH (DATA HOSTING LOCATION(S): United States; LOCATION(S) OF PROCESSING: Germany) - Klaviyo Ireland Limited (DATA HOSTING LOCATION(S): United States; LOCATION(S) OF PROCESSING: Ireland) - Klaviyo Singapore Pte. Ltd. (DATA HOSTING LOCATION(S): United States; LOCATION(S) OF PROCESSING: Singapore) ## Security program What Klaviyo, Inc.'s Form 10-K for fiscal 2025, filed Feb 10, 2026 (Item 1C) says, in its words (https://www.sec.gov/Archives/edgar/data/1835830/000183583026000007/0001835830-26-000007-index.htm). - Led by: Chief Information Security Officer - Leader's experience: 20+ years - Board oversight: Audit Committee - Frameworks named: NIST CSF, ISO 27001, SOC 2 - Practices named: Incident response plan, Penetration testing, Vulnerability management - Engages outside assessors or consultants - Reviews its suppliers' security - Says no cybersecurity incident has materially affected it ## Web Technologies Klaviyo's homepage made 544 requests to 71 domains, 43 services controlled by another company, and 3 domains not identified. Loaded on 2026-11-03 by a browser that accepted nothing; other visits may load more or less. What a page loads is not a list of who receives customer data. 43 third parties by category: Advertising 20 (Google Cloud, Amazon, The Trade Desk, Inc., OpenAI, Microsoft, X Corp., MNTN, Inc., Reddit, Inc., Capterra Inc., Pinterest, Spotify AB, Pinterest; reviewed: Tapad, Inc., Innovid, ArtsAI, Claritas, LLC, Index Exchange Inc.; usually detected as Advertising: Xandr, Magnite, Inc., PubMatic); Analytics 13 (TikTok, Contentsquare, Meta, Optimizely, LinkedIn, HubSpot, Demandbase, Cloudflare, Dun & Bradstreet, G2.com, Heap, Intentsify, LLC, TikTok); Marketing automation 2 (6Sense Insights, Inc.; usually detected as Marketing automation: Adobe); Widgets 2 (Navattic; usually detected as Widgets: AddThis); Live chat 1 (Qualified.com, Inc.); Cookie compliance 1 (Transcend); CMS 1 (usually detected as CMS: Sanity); Customer data platform 1 (reviewed: LiveRamp); Issue trackers 1 (usually detected as Issue trackers: Sentry); Video players 1 (reviewed: Vimeo). Each company that appears controlled by another organization is counted once, under the main category of the technologies detected from it on this homepage or, when none was, the category recorded from the company's own page (marked reviewed) or else the one it is usually detected as on other published homepages (marked as such); unclassified: none of these. ### Third parties (43) - Google Cloud: 69 requests to google.com, doubleclick.net, googleadservices.com, googletagmanager.com, gstatic.com, fonts.googleapis.com; DoubleClick Floodlight, Google Analytics, Google Tag Manager, reCAPTCHA - Sanity: 66 requests to sanity.io - Qualified.com, Inc.: 36 requests to qualified.com; Qualified - Vimeo: 36 requests to vimeo.com, vimeocdn.com - 6Sense Insights, Inc.: 20 requests to 6sc.co, 6sense.com; 6sense - Amazon: 18 requests to amazon-adsystem.com; Amazon Advertising - The Trade Desk, Inc.: 16 requests to adsrvr.org; theTradeDesk - TikTok: 11 requests to tiktok.com; TikTok Pixel - Contentsquare: 10 requests to contentsquare.net; Contentsquare - OpenAI: 10 requests to openai.com; ChatGPT Ads Measurement Pixel (its subprocessor list names it too) - Meta: 9 requests to facebook.com, facebook.net, capi-automation.s3.us-east-2.amazonaws.com; Facebook Pixel 2.9.435 (its subprocessor list names it too) - Optimizely: 9 requests to optimizely.com, zaius.com, d1igp3oop3iho5.cloudfront.net; Optimizely, Optimizely Data Platform - LinkedIn: 6 requests to linkedin.com, licdn.com; Linkedin Insight Tag - HubSpot: 5 requests to hs-analytics.net, hs-banner.com, hs-scripts.com, hsforms.net, hubspot.com; HubSpot, HubSpot Analytics - Microsoft: 5 requests to bing.com; Microsoft Advertising (its subprocessor list names it too) - Transcend: 5 requests to transcend-cdn.com; Transcend - X Corp.: 5 requests to t.co, twitter.com, ads-twitter.com; Twitter Ads - MNTN, Inc.: 4 requests to mountain.com; Mountain - Reddit, Inc.: 4 requests to reddit.com, redditstatic.com; Reddit Ads - Xandr: 4 requests to adnxs.com - Capterra Inc.: 3 requests to capterra.com; Capterra - Demandbase: 3 requests to company-target.com, demandbase.com; Demandbase 11.1.6 - Magnite, Inc.: 3 requests to rubiconproject.com, tremorhub.com - Navattic: 3 requests to navattic.com; Navattic - Pinterest: 3 requests to pinterest.com; Pinterest Ads - Spotify AB: 3 requests to spotify.com, pdst.fm; Podsights, Spotify Pixel - Tapad, Inc.: 3 requests to tapad.com - Adobe: 2 requests to demdex.net - Cloudflare: 2 requests to cloudflare.com, cloudflareinsights.com; Cloudflare Browser Insights, cdnjs (its subprocessor list names it too) - Dun & Bradstreet: 2 requests to d41.co; D&B Visitor Intelligence - G2.com: 2 requests to g2.com, g2crowd.com; G2 Track Your Prospects - Heap: 2 requests to heapanalytics.com; Heap 4.23.12 - Innovid: 2 requests to tvsquared.com - Pinterest: 2 requests to pinimg.com; Pinterest Ads - Sentry: 2 requests to sentry.io (its subprocessor list names it too) - AddThis: 1 request to addthis.com - ArtsAI: 1 request to arttrk.com - Claritas, LLC: 1 request to trkn.us - Index Exchange Inc.: 1 request to casalemedia.com - Intentsify, LLC: 1 request to intentsify.io; Intentsify - LiveRamp: 1 request to rlcdn.com - PubMatic: 1 request to pubmatic.com - TikTok: 1 request to tiktokw.us; TikTok Pixel ### Unknown (3) Domains not identified yet: australiarevival.com, 35.85.84.151, usbrowserspeed.com ### First party (1) - Klaviyo: 133 requests to klaviyo.com; Adobe Audience Manager, Astro, Cloudflare, Floating UI, HSTS, Innovid Advertising Measurement, Klaviyo, Klaviyo Data Platform, Open Graph, PWA, Paraglide JS, Pinterest Conversion Tag, Priority Hints, Sanity, Sanity.io, Sentry, Statsig 3.25.5, TVSquared, Vimeo, core-js 3.36.0 20 tracked companies loaded by the homepage are not in Klaviyo's subprocessor list. A website can use a service without it processing customer data. ## Subprocessor of (12) Tracked vendors whose own subprocessor lists name it, and what they say they use it for. - [Antavo](https://thirdpartyindex.com/vendors/antavo.md): Marketing Automation Platform - [Cometly](https://thirdpartyindex.com/vendors/cometly.md): Sends marketing emails and/or text messages. Stores names, email addresses, and phone numbers for campaign management. Klaviyo Privacy - [Fenix Commerce](https://thirdpartyindex.com/vendors/fenix-commerce.md): Order Status Email and SMS Notifications - [Firmhouse](https://thirdpartyindex.com/vendors/firmhouse.md) - [Friendbuy](https://thirdpartyindex.com/vendors/friendbuy.md): Email / SMS provider - [Iconik](https://thirdpartyindex.com/vendors/iconik.md): Klaviyo is used for - [Klevu](https://thirdpartyindex.com/vendors/klevu.md): Used for personalizing and segmenting website visitors based on segmentation data in Klaviyo. This is only applicable if the Merchant uses Klaviyo. - [ParcelPanel](https://thirdpartyindex.com/vendors/parcelpanel.md): Customer Communication & Marketing Platform - [Relay Commerce](https://thirdpartyindex.com/vendors/relay-commerce.md) - [RevenueHunt](https://thirdpartyindex.com/vendors/revenuehunt.md): Email marketing integration - [S2 Cognition](https://thirdpartyindex.com/vendors/s2-cognition.md): Marketing Communications - [Topaz Labs](https://thirdpartyindex.com/vendors/topaz-labs.md): Account Owner/Admin Marketing Communications ## Service status Incidents it reported on its own status page. - Last 90 days: 12 reported incidents (6 major or critical, 5 minor, 1 with no impact stated) - Typical time to resolve: 3 h 33 min - Status page last read: 2026-11-12 - 2026-11-04: Klaviyo app slowness (major) - 2026-10-29: Campaign Sending Delays (major) - 2026-10-28: Elevated flow recipient skips (no impact stated) - 2026-10-22: Outbound Webhook Delays (major) - 2026-10-17: Flow Sending Delays (major) - 2026-10-09: Analytics Events Processing Delays (minor) - 2026-10-08: Login and page loading issues (critical) - 2026-09-21: Flow sending delays (minor) ## Incidents reported by Klaviyo's subprocessors Incidents reported in the last 30 days on their own status pages by 13 vendors Klaviyo lists as subprocessors. A subprocessor list names a company, not the service an incident touched. - 2026-11-12: [Snowflake](https://thirdpartyindex.com/vendors/snowflake#status), which Klaviyo lists as a subprocessor, reported INC20000347 (minor) - 2026-11-12: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported MMS Delivery Failures from Twilio to GCI United States (minor) - 2026-11-12: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Failures from Twilio Long Codes to AT&T United States (minor) - 2026-11-12: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Failures from Twilio to Orange Sierra Leone (minor) - 2026-11-12: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Failures From Long Code Numbers to AT&T in the US (minor) - 2026-11-11: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Delays from Twilio to MTS Kazakhstan (minor) - 2026-11-11: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Failures from a Subset of Twilio Phone Numbers to Tcell Tajikistan (minor) - 2026-11-11: [OpenAI](https://thirdpartyindex.com/vendors/openai#status), which Klaviyo lists as a subprocessor, reported Unable to start new Workspace Agent runs (critical) - 2026-11-11: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported MMS Delivery Delays from a Subset of Twilio Long Codes to Multiple Small Networks in United States (minor) - 2026-11-11: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Failures from a Subset of Twilio Phone Numbers to K-Cell Kazakhstan (minor) - 2026-11-11: [OpenAI](https://thirdpartyindex.com/vendors/openai#status), which Klaviyo lists as a subprocessor, reported Elevated errors affecting logins, sign-ups, and ChatGPT features (minor) - 2026-11-11: [Statsig](https://thirdpartyindex.com/vendors/statsig#status), which Klaviyo lists as a subprocessor, reported Delayed Config Propagation in Europe and Asia Regions (no impact stated) - 2026-11-11: [Sentry](https://thirdpartyindex.com/vendors/sentry#status), which Klaviyo lists as a subprocessor, reported US issues feed throwing intermittent errors (minor) - 2026-11-11: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Voice Call Failures in JP1 (minor) - 2026-11-11: [ClickHouse](https://thirdpartyindex.com/vendors/clickhouse#status), which Klaviyo lists as a subprocessor, reported Provisioning and scaling operations may take longer in AWS ap-northeast-1 Tokyo (minor) - 2026-11-11: [Infobip](https://thirdpartyindex.com/vendors/infobip#status), which Klaviyo lists as a subprocessor, reported Multiple Location - WhatsApp Sender Registrations Failure (minor) - 2026-11-11: [Linear](https://thirdpartyindex.com/vendors/linear#status), which Klaviyo lists as a subprocessor, reported Slack integration degraded due to Slack outage (minor) - 2026-11-11: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Failures from Twilio to Turkcell Turkey (minor) - 2026-11-11: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Taiwan Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-11: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Switzerland Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-11: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Indonesia Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-11: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Qatar Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-11: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Poland Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-11: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Spain Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-11: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Israel Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-11: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Canada Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-11: [Sentry](https://thirdpartyindex.com/vendors/sentry#status), which Klaviyo lists as a subprocessor, reported Account emails not being delivered (major) - 2026-11-11: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire France Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-11: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Finland Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-11: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Eu Sovereign Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-11: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire EU Regulated Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-11: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Germany Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-11: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Brazil Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-11: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Italy Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-11: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Global Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-11: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Europe Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-11: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Retroactive Incident Impacting Twilio Usage APIs (no impact stated) - 2026-11-10: [Anthropic](https://thirdpartyindex.com/vendors/anthropic#status), which Klaviyo lists as a subprocessor, reported Elevated errors on Fable 52 and Mythos 52 (no impact stated) - 2026-11-10: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Issue resolved (minor) - 2026-11-10: [Sentry](https://thirdpartyindex.com/vendors/sentry#status), which Klaviyo lists as a subprocessor, reported EU region replay ingestion latency (minor) - 2026-11-10: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Receipt Delays from Twilio Phone Numbers to Movistar Venezuela (minor) - 2026-11-10: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported Emergency maintenance on app.prismacloud.io ( US - North Virginia ) 3AM-4AM , PST (minor) - 2026-11-10: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Delhi Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-10: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire India Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-10: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire South Africa Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-10: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire US Native Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-10: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Australia Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-10: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Saudi Arabia Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-10: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire South Korea Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-10: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Singapore Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-10: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire UK Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-10: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Indonesia Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-10: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Qatar Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-10: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Switzerland Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-10: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Taiwan Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-10: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Gateway API (Lookup API) Failure Increase on Verizon in United States (minor) - 2026-11-10: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Israel Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-10: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Germany Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-10: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Poland Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-10: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire France Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-10: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Finland Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-10: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Spain Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-10: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Eu Sovereign Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-10: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire EU Regulated Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-10: [OpenAI](https://thirdpartyindex.com/vendors/openai#status), which Klaviyo lists as a subprocessor, reported Incorrect cost data in Costs API exports (no impact stated) - 2026-11-10: [Infobip](https://thirdpartyindex.com/vendors/infobip#status), which Klaviyo lists as a subprocessor, reported Global (Europe) - Email Service Degradation (minor) - 2026-11-09: [OpenAI](https://thirdpartyindex.com/vendors/openai#status), which Klaviyo lists as a subprocessor, reported Elevated Errors On API (minor) - 2026-11-09: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Global Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-09: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported WhatsApp Business API Message Send Failures (minor) - 2026-11-09: [OpenAI](https://thirdpartyindex.com/vendors/openai#status), which Klaviyo lists as a subprocessor, reported Elevated ChatGPT Conversation Errors (minor) - 2026-11-09: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Voice Call Failures from a Subset of Twilio Phone Numbers to Chile (minor) - 2026-11-09: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Voice Call Audio Quality Degradation, Silent and One-Way Audio between Twilio and Multiple Networks in United Kingdom (minor) - 2026-11-09: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Delays and Failures from a Subset of Twilio Alphanumeric Sender IDs and Long Codes to Multiple Networks in Italy (minor) - 2026-11-09: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Delays and Failures from Twilio to Spusu United Kingdom (minor) - 2026-11-09: [Infobip](https://thirdpartyindex.com/vendors/infobip#status), which Klaviyo lists as a subprocessor, reported Pakistan - Customer Portal Unavailable (critical) - 2026-11-09: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Receipt Delays from Twilio to Bouygues Telecom France (minor) - 2026-11-09: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Japan Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-09: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Brazil Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-09: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Italy Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-09: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported Prisma Cloud: Alert Manual and Automated Remediation is unavailable (minor) - 2026-11-09: [Infobip](https://thirdpartyindex.com/vendors/infobip#status), which Klaviyo lists as a subprocessor, reported SMPP Service Disruption - Connection Issues (minor) - 2026-11-09: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Failures from Network Subscribers in Germany to a Subset of Twilio Long Codes (minor) - 2026-11-09: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Failures from Twilio to ETL Laos (minor) - 2026-11-08: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Failures from Twilio to MTN Nigeria (minor) - 2026-11-08: [OpenAI](https://thirdpartyindex.com/vendors/openai#status), which Klaviyo lists as a subprocessor, reported Elevated errors with image generation (minor) - 2026-11-08: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Silent Network Authentication (SNA) Failure Increase and Gateway API (Lookup API) Failure Increase on EnStream in Canada (minor) - 2026-11-08: [Anthropic](https://thirdpartyindex.com/vendors/anthropic#status), which Klaviyo lists as a subprocessor, reported Degraded performance for Claude Fable 5.1 (minor) - 2026-11-07: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Receipt Delays from Twilio to Globe Philippines (minor) - 2026-11-07: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Receipt Delays from a Subset of Twilio Long Codes and Short Codes to Multiple Networks in United States (minor) - 2026-11-07: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Delays from Twilio to Multiple Networks in India (minor) - 2026-11-07: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Receipt Delays from a Subset of Twilio Short Codes to Multiple Networks in New Zealand (minor) - 2026-11-07: [Snowflake](https://thirdpartyindex.com/vendors/snowflake#status), which Klaviyo lists as a subprocessor, reported INC20000337 (minor) - 2026-11-07: [Infobip](https://thirdpartyindex.com/vendors/infobip#status), which Klaviyo lists as a subprocessor, reported Pakistan - Customer Portal Services Degradation (minor) - 2026-11-06: [Snowflake](https://thirdpartyindex.com/vendors/snowflake#status), which Klaviyo lists as a subprocessor, reported INC20000336 (minor) - 2026-11-06: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Delays from a Subset of Twilio Long Codes to Multiple Networks in Chile (minor) - 2026-11-06: [OpenAI](https://thirdpartyindex.com/vendors/openai#status), which Klaviyo lists as a subprocessor, reported Elevated error rates with some U.S. business Mastercards (no impact stated) - 2026-11-06: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Delays from Twilio to Claro Dominican Republic (minor) - 2026-11-06: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Brazil Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-06: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported TwiML ConversationRelay Documents Page Error (minor) - 2026-11-06: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Voice Call Failures from a Subset of Twilio Phone Numbers to Chile (minor) - 2026-11-06: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Voice Call Audio Quality Degradation from a Subset of Twilio Mobile Numbers to Claro Colombia (minor) - 2026-11-06: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Notification Logs Unavailable in Console (minor) - 2026-11-06: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Delays Between Twilio and T-Mobile in Czech Republic (minor) - 2026-11-05: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Voice Call Silent and One-Way Audio between a Subset of Twilio Phone Numbers and Multiple Networks in Colombia (minor) - 2026-11-05: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Israel Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-05: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Switzerland Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-05: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Spain Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-05: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Australia Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-05: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Delhi Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-05: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Receipt Delays from a Subset of Twilio Short Codes to Liberty Puerto Rico (minor) - 2026-11-05: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Failures from Twilio Phone Numbers to Lycamobile France (minor) - 2026-11-05: [Infobip](https://thirdpartyindex.com/vendors/infobip#status), which Klaviyo lists as a subprocessor, reported United States - RCS sender management and Test numbers management degradation (minor) - 2026-11-05: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire GVS Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-05: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Voice Call Failures From a Subset of Twilio Mobile Numbers to Argentina (minor) - 2026-11-05: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Eu Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-05: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire EU Regulated Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-05: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire India Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-05: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Us Native Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-05: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Eu Sovereign Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-05: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Canada Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-05: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire France Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-05: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Germany Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-05: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Uk Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-05: [OpenAI](https://thirdpartyindex.com/vendors/openai#status), which Klaviyo lists as a subprocessor, reported ChatGPT Work and Dots Errors (minor) - 2026-11-05: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Voice Call Post Dial Delay from a Subset of Twilio Canada Phone Numbers to Rogers Wireless and Fido Canada (minor) - 2026-11-05: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Singapore Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-05: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire South Africa Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-05: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire South Korea Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-05: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Finland Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-05: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Indonesia Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-05: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Poland Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-05: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Saudi Arabia Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-04: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported Scheduled Maintenance for File Manager (FileMgr) in France region (no impact stated) - 2026-11-04: [OpenAI](https://thirdpartyindex.com/vendors/openai#status), which Klaviyo lists as a subprocessor, reported Elevated error rates across paid ChatGPT plans (minor) - 2026-11-04: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Taiwan Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-04: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Japan Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-04: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Brazil Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-04: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Qatar Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-04: [Ada Support](https://thirdpartyindex.com/vendors/ada-support#status), which Klaviyo lists as a subprocessor, reported Complete ada outage (critical) - 2026-11-04: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Italy Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-04: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Search Delays on Enterprise Knowledge (minor) - 2026-11-04: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Delayed Email Validation History (minor) - 2026-11-04: [Sentry](https://thirdpartyindex.com/vendors/sentry#status), which Klaviyo lists as a subprocessor, reported Ingestion delays across all data (minor) - 2026-11-04: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Delays from Twilio to Claro Brazil (minor) - 2026-11-04: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire PubSec (FRM) Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-04: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Gov (FRH) Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-04: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Delays from Twilio to Algar Telecom Brazil (minor) - 2026-11-04: [Infobip](https://thirdpartyindex.com/vendors/infobip#status), which Klaviyo lists as a subprocessor, reported Indonesia - Issues with file processing in multiple services (major) - 2026-11-04: [Infobip](https://thirdpartyindex.com/vendors/infobip#status), which Klaviyo lists as a subprocessor, reported Pakistan - General connectivity degradation (minor) - 2026-11-04: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported MMS Delivery Failures from a Subset of Twilio Long Codes to GCI United States (minor) - 2026-11-03: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported MMS Delivery Delays from a Subset of Twilio Long Codes to Multiple Small Networks in United States (minor) - 2026-11-03: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire US Native Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-03: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Global Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-03: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Gov (FRH) Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-03: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire PubSec (FRM) Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-03: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Europe Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-03: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire UK Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-03: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Singapore Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-03: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire EU Regulated Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-03: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire South Korea Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-03: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Taiwan Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-03: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Germany Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-03: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Delhi Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-03: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Finland Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-03: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Australia Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-03: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Indonesia Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-03: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Switzerland Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-03: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Spain Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-03: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire South Africa Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-03: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Israel Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-03: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Qatar Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-03: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Saudi Arabia Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-03: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Poland Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-03: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Canada Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-03: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire India Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-03: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire France Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-03: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported MMS Delivery Receipt Delays and Delivery Delays from a Subset of Twilio Long Codes and Short Codes to AT&T United States (minor) - 2026-11-03: [Sentry](https://thirdpartyindex.com/vendors/sentry#status), which Klaviyo lists as a subprocessor, reported Delays in spans and transactions processing (major) - 2026-11-03: [Sentry](https://thirdpartyindex.com/vendors/sentry#status), which Klaviyo lists as a subprocessor, reported Sentry.io dashboard and API is down (critical) - 2026-11-03: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported MMS Delivery Delays and Failures from a Subset of Twilio Short Codes to T-Mobile and Verizon United States (minor) - 2026-11-03: [Infobip](https://thirdpartyindex.com/vendors/infobip#status), which Klaviyo lists as a subprocessor, reported United States - MMS service degradation (minor) - 2026-11-03: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Delays from a Subset of Twilio Short Codes and Long Codes to Brisanet Brazil (minor) - 2026-11-03: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported MMS Delivery Delays from a Subset of Twilio Long Codes to Multiple Small Networks United States (minor) - 2026-11-03: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Delays from Twilio to Entel Bolivia (minor) - 2026-11-03: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Delays from Twilio to Lycamobile United Kingdom (minor) - 2026-11-03: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Voice Call Audio Quality Degradation from a Subset of Twilio Phone Numbers to Multiple Networks in United States (minor) - 2026-11-03: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported RateQueue Host Down Did Not Recover (minor) - 2026-11-03: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Media Streams Audio Delays (minor) - 2026-11-03: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Eu Sovereign Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-03: [OpenAI](https://thirdpartyindex.com/vendors/openai#status), which Klaviyo lists as a subprocessor, reported File upload errors in ChatGPT (minor) - 2026-11-02: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Delays and Failures from Twilio to Claro Puerto Rico (minor) - 2026-11-02: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Australia Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-02: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Canada Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-02: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Italy Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-02: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Brazil Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-02: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Receipt Delays from a Subset of Twilio Short Codes to Liberty Puerto Rico (minor) - 2026-11-02: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Voice Call One-Way Audio from Brazil to a Subset of Twilio Numbers (no impact stated) - 2026-11-02: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Finland Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-02: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire France Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-02: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Canada Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-02: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Australia Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-02: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Germany Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-02: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire EU Regulated Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-02: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Europe Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-02: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Brazil Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-02: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Japan Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-02: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Italy Cloud Service Scheduled Maintenance (no impact stated) - 2026-11-02: [ClickHouse](https://thirdpartyindex.com/vendors/clickhouse#status), which Klaviyo lists as a subprocessor, reported SQL Console database connection outage (minor) - 2026-11-02: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Some Customers May Have Incorrect Balances Reflected on Their Account (minor) - 2026-11-02: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Delays and Failures from Twilio Alphanumeric Sender Type to T-Mobile Austria (minor) - 2026-11-02: [Sentry](https://thirdpartyindex.com/vendors/sentry#status), which Klaviyo lists as a subprocessor, reported Sentry dashboard is down (critical) - 2026-11-02: [Infobip](https://thirdpartyindex.com/vendors/infobip#status), which Klaviyo lists as a subprocessor, reported Multiple Locations - Salesforce Marketing Cloud Service Degradation (minor) - 2026-11-02: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Delays from a Subset of Twilio Long Codes to T-Mobile and O2 Czech Republic (minor) - 2026-11-02: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Silent Network Authentication (SNA) Missing Redirects on XL Axiata in Indonesia (minor) - 2026-11-02: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Voice Call Failures From a Subset of Twilio Philippines Phone Numbers to Multiple Networks in Philippines (minor) - 2026-11-02: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Delays from a Subset of Twilio Short Codes to Google Voice United States (minor) - 2026-11-01: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Failures from Twilio to KDDI Japan (minor) - 2026-10-31: [Infobip](https://thirdpartyindex.com/vendors/infobip#status), which Klaviyo lists as a subprocessor, reported Global (Europe) - Partial Packet Loss (minor) - 2026-10-30: [Snowflake](https://thirdpartyindex.com/vendors/snowflake#status), which Klaviyo lists as a subprocessor, reported INC20000321 (minor) - 2026-10-30: [OpenAI](https://thirdpartyindex.com/vendors/openai#status), which Klaviyo lists as a subprocessor, reported Elevated errors with search in Dots, ChatGPT Work, and certain ChatGPT thinking experiences (minor) - 2026-10-30: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Silent Network Authentication (SNA) Missing Redirects and Gateway API (Lookup API) High Latency on KPN in Netherlands (minor) - 2026-10-30: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Silent Network Authentication (SNA) Missing Redirects on Smart in Philippines (minor) - 2026-10-30: [Linear](https://thirdpartyindex.com/vendors/linear#status), which Klaviyo lists as a subprocessor, reported Project pages failing to load (minor) - 2026-10-30: [OpenAI](https://thirdpartyindex.com/vendors/openai#status), which Klaviyo lists as a subprocessor, reported Elevated errors for GPT Image 2 API image edits (minor) - 2026-10-30: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Automated Alert: Minimal Customer Impact (no impact stated) - 2026-10-30: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported Delayed Alibaba cloud ingestion for all customers (no impact stated) - 2026-10-30: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS and MMS Delivery Delays from Twilio to Altice United States (minor) - 2026-10-29: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Receipt Delays from Twilio to Multiple Networks in Multiple Countries Across Africa and Asia (minor) - 2026-10-29: [Infobip](https://thirdpartyindex.com/vendors/infobip#status), which Klaviyo lists as a subprocessor, reported Global (Europe) - Zalo service degradation (minor) - 2026-10-29: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Delays from a Subset of Twilio Phone Numbers to Vivo Brazil (minor) - 2026-10-29: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Gateway API (Lookup API) Failure Increase on Verizon in United States (minor) - 2026-10-29: [Snowflake](https://thirdpartyindex.com/vendors/snowflake#status), which Klaviyo lists as a subprocessor, reported INC20000319 (minor) - 2026-10-29: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Flex Agent Copilot Note Generation Issues (minor) - 2026-10-29: [Infobip](https://thirdpartyindex.com/vendors/infobip#status), which Klaviyo lists as a subprocessor, reported Vietnam - Multiple services degradation (major) - 2026-10-29: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Voice Call Failures from a Subset of Twilio Phone Numbers to T-Mobile United States (minor) - 2026-10-29: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported MMS Delivery Receipt Delays from a Subset of Twilio Short Codes to T-Mobile United States (minor) - 2026-10-28: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), which Klaviyo lists as a subprocessor, reported Link Shortening Redirect Errors on Branded Domains (minor) - 2026-10-28: [Linear](https://thirdpartyindex.com/vendors/linear#status), which Klaviyo lists as a subprocessor, reported Some Slack integrations have been unexpectedly archived (no impact stated) - 2026-10-28: [Infobip](https://thirdpartyindex.com/vendors/infobip#status), which Klaviyo lists as a subprocessor, reported United States - HTTP API Degradation (minor) - 2026-10-28: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Delays from a Subset of Twilio Long Codes to Orange Belgium (minor) - 2026-10-28: [Anthropic](https://thirdpartyindex.com/vendors/anthropic#status), which Klaviyo lists as a subprocessor, reported Elevated errors affecting the Google Calendar connector (minor) - 2026-10-28: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Silent Network Authentication (SNA) Failure Increase and Gateway API (Lookup API) Failure Increase on EE in United Kingdom (minor) - 2026-10-28: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Possible 503 Errors for Messaging Traffic in the Australia Region (minor) - 2026-10-28: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Silent Network Authentication (SNA) Failure Increase on Indosat in Indonesia (minor) - 2026-10-28: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Delays and Failures from Twilio to MTC Namibia (minor) - 2026-10-28: [Mailgun](https://thirdpartyindex.com/vendors/mailgun#status), which Klaviyo lists as a subprocessor, reported Route delays in EU Region (minor) - 2026-10-28: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Twilio Console Errors (no impact stated) - 2026-10-28: [Anthropic](https://thirdpartyindex.com/vendors/anthropic#status), which Klaviyo lists as a subprocessor, reported Elevated errors affecting the Gmail connector (minor) - 2026-10-28: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Elevated 500 Errors Affecting Programmable Voice API (no impact stated) - 2026-10-27: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Delays from Twilio to Surf Telecom Brazil (minor) - 2026-10-27: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Delays and Failures between a Subset of Twilio Long Codes and Multiple Networks in Portugal (minor) - 2026-10-27: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Voice Call Failures From a Subset of Twilio Phone Numbers to Argentina (minor) - 2026-10-27: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Elevated 500 Errors Affecting Programmable Messaging API (no impact stated) - 2026-10-27: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported MMS Delivery Delays from a Subset of Twilio Long Codes to C-Spire United States (minor) - 2026-10-27: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Eu Sovereign Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-27: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Finland Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-27: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Brazil Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-27: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire US Native Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-27: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire GVS Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-27: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire EU Regulated Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-27: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Gov (FRH) Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-27: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire PubSec (FRM) Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-27: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire South Africa Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-27: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Spain Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-27: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Saudi Arabia Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-27: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Israel Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-27: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire South Korea Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-27: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Qatar Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-27: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire France Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-27: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Taiwan Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-27: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Indonesia Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-27: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Poland Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-27: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Switzerland Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-27: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire India Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-27: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Germany Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-27: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Australia Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-27: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Canada Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-27: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire UK Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-27: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Singapore Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-27: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Europe Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-27: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Global Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-27: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Japan Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-27: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Delhi Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-27: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Italy Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-27: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Automated Alert: Minimal Customer Impact (no impact stated) - 2026-10-27: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Voice Call Failures from Twilio Mobile Numbers to Israel (minor) - 2026-10-27: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Gateway API (Lookup API) Failure Increase on Three in United Kingdom (minor) - 2026-10-27: [Anthropic](https://thirdpartyindex.com/vendors/anthropic#status), which Klaviyo lists as a subprocessor, reported Elevated errors for Claude Sonnet 5.5 (major) - 2026-10-27: [OpenAI](https://thirdpartyindex.com/vendors/openai#status), which Klaviyo lists as a subprocessor, reported 6.1 Sol Degraded Model Performance (minor) - 2026-10-27: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported MMS Delivery Delays from a Subset of Twilio Long Codes to AT&T United States (minor) - 2026-10-27: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Delays and Failures from Twilio to Turkcell Turkey (minor) - 2026-10-27: [Anthropic](https://thirdpartyindex.com/vendors/anthropic#status), which Klaviyo lists as a subprocessor, reported Elevated errors for Claude Sonnet 5.5 (major) - 2026-10-27: [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Voice Call Failures From Twilio Phone Numbers to Germany (minor) - 2026-10-27: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Voice Call Failures from a Subset of Twilio Phone Numbers to Germany (minor) - 2026-10-27: [Linear](https://thirdpartyindex.com/vendors/linear#status), which Klaviyo lists as a subprocessor, reported Problems loading application (major) - 2026-10-27: [OpenAI](https://thirdpartyindex.com/vendors/openai#status), which Klaviyo lists as a subprocessor, reported Elevated error rates for most hosted Code Reviews and Security Reviews on private GitHub repositories (no impact stated) - 2026-10-27: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Receipt Delays from a Subset of Twilio Long Codes to AT&T United States (minor) - 2026-10-27: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Delays and Failures between a Subset of Twilio Long Codes and Multiple Networks in South Africa (minor) - 2026-10-26: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Failures From a Subset of Twilio Phone Numbers to Multiple Networks in Brazil (minor) - 2026-10-26: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported MMS Delivery Delays and Failures from a Subset of Twilio Long Codes to Cellcom United States (minor) - 2026-10-26: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Delays from a Subset of Twilio Short Codes to Docomo Pacific United States (minor) - 2026-10-26: [OpenAI](https://thirdpartyindex.com/vendors/openai#status), which Klaviyo lists as a subprocessor, reported Elevated error rates for Ads POST requests (minor) - 2026-10-26: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Eu Sovereign Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-26: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Finland Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-26: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire US Native Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-26: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire GVS Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-26: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire EU Regulated Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-26: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Gov (FRH) Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-26: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire PubSec (FRM) Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-26: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire South Africa Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-26: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Spain Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-26: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Saudi Arabia Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-26: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Israel Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-26: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire South Korea Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-26: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Qatar Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-26: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire France Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-26: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Taiwan Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-26: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Indonesia Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-26: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Poland Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-26: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Switzerland Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-26: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire India Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-26: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Germany Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-26: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Australia Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-26: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Canada Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-26: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire UK Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-26: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Singapore Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-26: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Europe Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-26: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported Enterprise DLP: US West Elevated Latency (minor) - 2026-10-26: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported WhatsApp Sandbox Sending Configuration Issues (minor) - 2026-10-26: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Delays and Failures from Twilio to Mauritel Mauritania (minor) - 2026-10-26: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Voice Call Failures from Twilio Phone Numbers to Digi Mobil Romania (minor) - 2026-10-26: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Delays from Twilio to Cellcom Israel (minor) - 2026-10-25: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Global Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-25: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Japan Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-25: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Delays from Twilio to Telcel Mexico (minor) - 2026-10-25: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Delays and Failures from Twilio to Claro Brazil and Puerto Rico (minor) - 2026-10-25: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Delays from Twilio to Telia Sweden (minor) - 2026-10-25: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Delays from Twilio to Airtel Nigeria (minor) - 2026-10-25: [Anthropic](https://thirdpartyindex.com/vendors/anthropic#status), which Klaviyo lists as a subprocessor, reported Elevated errors for Claude Fable 5.1 (major) - 2026-10-25: [Anthropic](https://thirdpartyindex.com/vendors/anthropic#status), which Klaviyo lists as a subprocessor, reported Elevated errors for Claude Sonnet 5.5 and other models (major) - 2026-10-24: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Azure Marketplace SendGrid Customers Experiencing Account Management Issues (minor) - 2026-10-24: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Silent Network Authentication (SNA) Missing Redirects and Gateway API (Lookup API) Failure Increase in Netherlands (minor) - 2026-10-24: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported MMS Delivery Delays from a Subset of Twilio Long Codes to C-Spire United States (minor) - 2026-10-24: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Silent Network Authentication (SNA) Missing Redirects on Vodafone in United Kingdom (minor) - 2026-10-24: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Voice Call Failures and Post Dial Delay From a Subset of Twilio Phone Numbers to United States (minor) - 2026-10-24: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Delays from Twilio to WOM Colombia (minor) - 2026-10-24: [Anthropic](https://thirdpartyindex.com/vendors/anthropic#status), which Klaviyo lists as a subprocessor, reported Elevated errors for Claude Fable 5 and Claude Fable 5.1 (major) - 2026-10-24: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Delays from Twilio to Claro Costa Rica (minor) - 2026-10-24: [Anthropic](https://thirdpartyindex.com/vendors/anthropic#status), which Klaviyo lists as a subprocessor, reported Elevated errors for Claude Opus 5.5 (major) - 2026-10-23: [Anthropic](https://thirdpartyindex.com/vendors/anthropic#status), which Klaviyo lists as a subprocessor, reported Elevated errors for Claude Fable 5.1, Sonnet 5.5, and Haiku 5.5 (critical) - 2026-10-23: [OpenAI](https://thirdpartyindex.com/vendors/openai#status), which Klaviyo lists as a subprocessor, reported Degraded experience with ChatGPT app connections using CIMD (minor) - 2026-10-23: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Voice Call Failures from Network Subscribers to Twilio Costa Rica Landline Numbers (minor) - 2026-10-23: [OpenAI](https://thirdpartyindex.com/vendors/openai#status), which Klaviyo lists as a subprocessor, reported Help Center Chat Support Degraded (no impact stated) - 2026-10-23: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Delays from a Subset of Twilio Short Codes and Long Codes to Claro Brazil (minor) - 2026-10-23: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Failures from Twilio to Multiple Networks in South Africa (minor) - 2026-10-23: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Delays from a Subset of Twilio Phone Numbers to Telefonica Nicaragua (minor) - 2026-10-23: [Infobip](https://thirdpartyindex.com/vendors/infobip#status), which Klaviyo lists as a subprocessor, reported Global (Europe)- Conversations Slowness and Errors (minor) - 2026-10-23: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Voice Call Post Dial Delay from Twilio Phone Numbers to Chile (minor) - 2026-10-23: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Delays from a Subset of Twilio Short Codes and Long Codes to Appalachian Wireless United States (minor) - 2026-10-23: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Delays from a Subset of Twilio Short Codes to Liberty Mobile Puerto Rico (minor) - 2026-10-23: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Receipt Delays from Twilio to Multiple Networks in United States and Canada (minor) - 2026-10-23: [Infobip](https://thirdpartyindex.com/vendors/infobip#status), which Klaviyo lists as a subprocessor, reported United States - Moments service degradation (major) - 2026-10-23: [Infobip](https://thirdpartyindex.com/vendors/infobip#status), which Klaviyo lists as a subprocessor, reported United States - SMPP service degradation (major) - 2026-10-23: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Delays and Failures from Twilio to Telecall Brazil (minor) - 2026-10-23: [ClickHouse](https://thirdpartyindex.com/vendors/clickhouse#status), which Klaviyo lists as a subprocessor, reported Degraded support ticket submission and response (minor) - 2026-10-23: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Delays from a Subset of Twilio Short Codes to Claro Colombia (minor) - 2026-10-23: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Delays from Twilio to Surf Telecom Brazil (minor) - 2026-10-23: [OpenAI](https://thirdpartyindex.com/vendors/openai#status), which Klaviyo lists as a subprocessor, reported Delays in customer support responses (no impact stated) - 2026-10-23: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Delays between a Subset of Twilio Phone Numbers and Multiple Networks in Brazil (minor) - 2026-10-23: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported MMS Delivery Delays from a Subset of Twilio Long Codes to Viaero United States (minor) - 2026-10-22: [OpenAI](https://thirdpartyindex.com/vendors/openai#status), which Klaviyo lists as a subprocessor, reported New Ad Accounts failing to provision admins (minor) - 2026-10-22: [OpenAI](https://thirdpartyindex.com/vendors/openai#status), which Klaviyo lists as a subprocessor, reported Degraded Performance of Dots on Enterprise (minor) - 2026-10-22: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Issue with 500 Errors on Porting Request Submissions (minor) - 2026-10-22: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Issue with Realtime Transcriptions and Deepgram (no impact stated) - 2026-10-22: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Intelligent Alerts Delivery Issues (minor) - 2026-10-22: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Hosted Number Verification Calls not Reaching Customers (minor) - 2026-10-22: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Delays and Failures from Twilio to Malitel Mali (minor) - 2026-10-22: [Infobip](https://thirdpartyindex.com/vendors/infobip#status), which Klaviyo lists as a subprocessor, reported Multiple Locations - Customer Portal Login Service Degradation (minor) - 2026-10-22: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported RCS Inbound Events Delayed (minor) - 2026-10-22: [Anthropic](https://thirdpartyindex.com/vendors/anthropic#status), which Klaviyo lists as a subprocessor, reported Elevated errors affecting Connectors (minor) - 2026-10-22: [OpenAI](https://thirdpartyindex.com/vendors/openai#status), which Klaviyo lists as a subprocessor, reported Elevated ChatGPT conversation and Responses API errors (minor) - 2026-10-22: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Billing Delays (no impact stated) - 2026-10-22: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Delays from Twilio to MTN Nigeria (minor) - 2026-10-21: [OpenAI](https://thirdpartyindex.com/vendors/openai#status), which Klaviyo lists as a subprocessor, reported Authentication errors for some users (major) - 2026-10-21: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Italy Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-21: [Ada Support](https://thirdpartyindex.com/vendors/ada-support#status), which Klaviyo lists as a subprocessor, reported Messages not being delivered (US region) (major) - 2026-10-21: [Anthropic](https://thirdpartyindex.com/vendors/anthropic#status), which Klaviyo lists as a subprocessor, reported Degraded performance for Claude Fable 5 (minor) - 2026-10-21: [Snowflake](https://thirdpartyindex.com/vendors/snowflake#status), which Klaviyo lists as a subprocessor, reported INC20000301 (critical) - 2026-10-21: [Sentry](https://thirdpartyindex.com/vendors/sentry#status), which Klaviyo lists as a subprocessor, reported Increased latency processing integration webhooks (minor) - 2026-10-21: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Silent Network Authentication (SNA) Missing Redirects and Gateway API (Lookup API) Failure Increase in Netherlands (minor) - 2026-10-21: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Delays from a Subset of Twilio Short Codes to Cellularone NE Arizona United States (minor) - 2026-10-21: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Failures from a Subset of Twilio Alphanumeric Sender Type to Jazz Pakistan (minor) - 2026-10-21: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Delays and Failures from Twilio Short Codes to Multiple Networks in India (minor) - 2026-10-21: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Failures from United Kingdom to a Subset of Twilio Long Codes (minor) - 2026-10-21: [OpenAI](https://thirdpartyindex.com/vendors/openai#status), which Klaviyo lists as a subprocessor, reported Elevated error rates for gpt-5.6-luna API requests (minor) - 2026-10-21: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Customer's Unable to Create New Requests for Hosting and Porting (minor) - 2026-10-21: [OpenAI](https://thirdpartyindex.com/vendors/openai#status), which Klaviyo lists as a subprocessor, reported Elevated FedRAMP API error rates for Astra and Sol (minor) - 2026-10-21: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Delays from Twilio to Orange France (minor) - 2026-10-21: [Sentry](https://thirdpartyindex.com/vendors/sentry#status), which Klaviyo lists as a subprocessor, reported Sentry.io not loading in US region (critical) - 2026-10-21: [Snowflake](https://thirdpartyindex.com/vendors/snowflake#status), which Klaviyo lists as a subprocessor, reported INC20000299 (minor) - 2026-10-21: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Voice Call Post Dial Delay From a Subset of Twilio Phone Numbers to Israel (minor) - 2026-10-21: [OpenAI](https://thirdpartyindex.com/vendors/openai#status), which Klaviyo lists as a subprocessor, reported Degraded performance in ChatGPT, Codex, and APIs (minor) - 2026-10-21: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Delays from Twilio to T-Mobile Czech Republic (minor) - 2026-10-20: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Failures from a Subset of Twilio Alphanumeric Sender IDs to United Arab Emirates (minor) - 2026-10-20: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Delhi Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-20: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Italy Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-20: [Sentry](https://thirdpartyindex.com/vendors/sentry#status), which Klaviyo lists as a subprocessor, reported Sentry.io not loading (major) - 2026-10-20: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Delays from a Subset of Twilio Short Codes to Telnyx United States (minor) - 2026-10-20: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Issue with Flex Agent Copilot Auto Wrap-up Notes (minor) - 2026-10-20: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Delays from a Subset of Twilio Phone Numbers to Telstra Australia (minor) - 2026-10-20: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported WhatsApp Embedded Signup Configuration Failures (minor) - 2026-10-20: [Infobip](https://thirdpartyindex.com/vendors/infobip#status), which Klaviyo lists as a subprocessor, reported Vietnam - General service degradation (major) - 2026-10-20: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Issue (minor) - 2026-10-20: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Voice Call Failures from Twilio Phone Numbers to Digi.Mobil Romania (minor) - 2026-10-20: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported \[Cortex XDR / XSIAM / XSOAR 8 / XPANSE/ CLOUD\] Degraded Performance in UK Region (major) - 2026-10-20: [ClickHouse](https://thirdpartyindex.com/vendors/clickhouse#status), which Klaviyo lists as a subprocessor, reported Google Cloud Outage (minor) - 2026-10-20: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Issue (minor) - 2026-10-20: [Snowflake](https://thirdpartyindex.com/vendors/snowflake#status), which Klaviyo lists as a subprocessor, reported INC20000294 (critical) - 2026-10-20: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Silent Network Authentication (SNA) Failure Increase on AT&T in United States (minor) - 2026-10-20: [Infobip](https://thirdpartyindex.com/vendors/infobip#status), which Klaviyo lists as a subprocessor, reported United States - Multiple Service Degradation (minor) - 2026-10-20: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Voice Call Failures from Network Subscribers to a Subset of Twilio Thailand Phone Numbers (minor) - 2026-10-19: [Infobip](https://thirdpartyindex.com/vendors/infobip#status), which Klaviyo lists as a subprocessor, reported Smpp System down For Accounts Located In The Us Infrastructure. (major) - 2026-10-19: [Sentry](https://thirdpartyindex.com/vendors/sentry#status), which Klaviyo lists as a subprocessor, reported Sentry is down (critical) - 2026-10-19: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported MMS Delivery Delays from a Subset of Twilio Long Codes to AT&T United States (minor) - 2026-10-19: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported MMS Delivery Delays from a Subset of Twilio Long Codes to Telus Canada (minor) - 2026-10-19: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported RCS Delivery Receipt Delays for AT&T (minor) - 2026-10-19: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Delays and Failures between a Subset of Twilio Long Codes and Multiple Networks in Italy (minor) - 2026-10-19: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Voice Call Failures from a Subset of Twilio Phone Numbers to Portugal (minor) - 2026-10-19: [OpenAI](https://thirdpartyindex.com/vendors/openai#status), which Klaviyo lists as a subprocessor, reported File Download errors (minor) - 2026-10-19: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Voice Call Failures and Post Dial Delay from a Subset of Twilio Mobile Numbers to Brazil (minor) - 2026-10-19: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Voice Call Failures from a Subset of Callers to Twilio Denmark Phone Numbers (minor) - 2026-10-19: [Infobip](https://thirdpartyindex.com/vendors/infobip#status), which Klaviyo lists as a subprocessor, reported EU Region-locked - Multiple Service Degradation (major) - 2026-10-19: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Receipt Delays from Twilio to Surf Telecom Brazil (minor) - 2026-10-19: [Snowflake](https://thirdpartyindex.com/vendors/snowflake#status), which Klaviyo lists as a subprocessor, reported INC20000290 (minor) - 2026-10-18: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Delays from a Subset of Twilio Short Codes to Brisanet Brazil (minor) - 2026-10-17: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Failures from Twilio Alphanumeric Sender Type to Multiple Networks in Turkey (minor) - 2026-10-17: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported 5300 Errors on Singapore Client Edge (minor) - 2026-10-16: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported On Call Engineers are Investigating Errors with the Virtual Phone in Legacy Console (no impact stated) - 2026-10-16: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Delays from a Subset of Twilio Short Codes and Long Codes to Multiple Networks in Colombia (minor) - 2026-10-16: [Ada Support](https://thirdpartyindex.com/vendors/ada-support#status), which Klaviyo lists as a subprocessor, reported Issues with a ticketing integration (minor) - 2026-10-16: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Delayed A2P Campaign Approvals (minor) - 2026-10-16: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Delays and Failures from a Subset of Twilio Alphanumeric Sender IDs and Long Codes to Multiple Networks in Czech Republic (minor) - 2026-10-16: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Receipt Delays from a Subset of Twilio Short Codes to Verizon United States (minor) - 2026-10-16: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Delays from a Subset of Twilio Short Codes to Brisanet Brazil (minor) - 2026-10-16: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Voice Call Post Dial Delay from a Subset of Twilio Phone Numbers to Brazil (minor) - 2026-10-16: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Receipt Delays from Twilio to MTN Nigeria (minor) - 2026-10-16: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Voice Call Silent and One-Way Audio from Gamma United Kingdom to a Subset of Twilio United Kingdom Phone Numbers (minor) - 2026-10-16: [Infobip](https://thirdpartyindex.com/vendors/infobip#status), which Klaviyo lists as a subprocessor, reported Colombia - Voice Service Distruption (no impact stated) - 2026-10-16: [Snowflake](https://thirdpartyindex.com/vendors/snowflake#status), which Klaviyo lists as a subprocessor, reported INC20000287 (critical) - 2026-10-15: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Voice Call Post Dial Delay from a Subset of Twilio Toll-Free, Landline, and Mobile Phone Numbers to Multiple Networks in Multiple Countries (minor) - 2026-10-15: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Voice Call Failures from Austria to a Subset of Twilio Austria Phone Numbers (minor) - 2026-10-15: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Email suppression issues (no impact stated) - 2026-10-15: [OpenAI](https://thirdpartyindex.com/vendors/openai#status), which Klaviyo lists as a subprocessor, reported Widespread feature degradation (major) - 2026-10-15: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Receipt Delays from a Subset of Twilio Short Codes to Brisanet Brazil (minor) - 2026-10-15: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Failures from France to a Subset of Twilio Short Codes (minor) - 2026-10-15: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Failures from Network Subscribers to Twilio Colombia Shortcode Numbers (minor) - 2026-10-15: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Silent Network Authentication (SNA) Failure Increase in Philippines (minor) - 2026-10-15: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Delays From a Subset of Twilio Phone Numbers to Surf Telecom Brazil (minor) - 2026-10-15: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported AI Runtime Security (AIRS) Cloud Degraded Performance (AIRS API Intercept URL Filtering) in US (minor) - 2026-10-14: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Failures from Twilio Alphanumeric Sender IDs and Long Codes to Evatis Djibouti (minor) - 2026-10-14: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Receipt Delays from a Subset of Twilio Short Codes to Liberty Mobile Puerto Rico (minor) - 2026-10-14: [OpenAI](https://thirdpartyindex.com/vendors/openai#status), which Klaviyo lists as a subprocessor, reported Delayed Costs data in the Compliance API (minor) - 2026-10-14: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Global Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-14: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Receipt Delays from a Subset of Twilio to Altan Redes Mexico (minor) - 2026-10-14: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Voice Call Failures and Post Dial Delay from Twilio Phone Numbers to Israel (minor) - 2026-10-14: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Italy Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-14: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire US Native Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-14: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire US Native Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-14: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Automated Alert: No Customer Impact (no impact stated) - 2026-10-14: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Spain Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-14: [OpenAI](https://thirdpartyindex.com/vendors/openai#status), which Klaviyo lists as a subprocessor, reported Limited availability on gpt-image-2.5-flare and gpt-image-2.5-sunburst (minor) - 2026-10-14: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire South Africa Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-14: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Saudi Arabia Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-14: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Israel Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-14: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire South Korea Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-14: [OpenAI](https://thirdpartyindex.com/vendors/openai#status), which Klaviyo lists as a subprocessor, reported Degraded performance in Codex and ChatGPT Work (minor) - 2026-10-14: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Indonesia Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-14: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire France Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-14: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire India Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-14: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Finland Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-14: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Delhi Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-14: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Canada Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-14: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Brazil Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-14: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Australia Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-14: [Sentry](https://thirdpartyindex.com/vendors/sentry#status), which Klaviyo lists as a subprocessor, reported Ingestion Halted for EAP data in EU (major) - 2026-10-14: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Spain Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-14: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire PubSec (FRM) Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-14: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Delays and Failures between Twilio and Multiple Networks in Brazil and Italy (minor) - 2026-10-13: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Delays and Failures from a Subset of Twilio Alphanumeric Sender IDs to Beeline Kazakhstan (minor) - 2026-10-13: [Snowflake](https://thirdpartyindex.com/vendors/snowflake#status), which Klaviyo lists as a subprocessor, reported INC20000277 (minor) - 2026-10-13: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Voice Call Audio Quality Degradation between Twilio Phone Numbers and Multiple Networks in Brazil (minor) - 2026-10-13: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported SMS Delivery Delays and Failures from Twilio to VIVACOM Bulgaria (minor) - 2026-10-13: [Twilio](https://thirdpartyindex.com/vendors/twilio#status), [SendGrid](https://thirdpartyindex.com/vendors/sendgrid#status), which Klaviyo lists as a subprocessor, reported Voice Call Failures between a Subset of Twilio South Africa Phone Numbers and Multiple Networks in South Africa (minor) - 2026-10-13: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Japan Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-13: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire India Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-13: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Finland Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-13: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire EU Regulated Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-13: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire US Native Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-13: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Brazil Cloud Service Scheduled Maintenance (no impact stated) - 2026-10-13: [Chronosphere](https://thirdpartyindex.com/vendors/chronosphere#status), which Klaviyo lists as a subprocessor, reported WildFire Delhi Cloud Service Scheduled Maintenance (no impact stated) The subprocessor list as we read it on any date: https://thirdpartyindex.com/labs/time-machine/klaviyo --- Third Party Index (https://thirdpartyindex.com) monitors vendors' public security and privacy documents and keeps each version as evidence. Data CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/); vendors' own documents are theirs. API: https://thirdpartyindex.com/api