Notion

notion.com · collaboration

Notion declares 30 subprocessors in its subprocessor list, which we last checked on Nov 11, 2026 (evidence). They include Amazon Web Services, Google Cloud and OpenAI. No published changes since we first read it on Sep 21, 2026. 99 tracked vendors name Notion as a subprocessor, including Supabase, LiveKit and Honeycomb.

Subprocessors CSV · Atom DORA draft CSV what's this? · 

30 third parties.

NamePurposeLocationListed since
Anthropic AIService provider for AI agents, hosting large language models and embeddings, and for abuse preventionGlobal
Anysource Inc., dba Runlayer Security for MCP connectionsUSA
AssemblyAI Inc. AITranscription servicesUSA
AWS Hosting and storage systems providerUSA, European Union, Korea, Japan
Baseten Labs, Inc. AICompute infrastructure for serving large language models and powering AI servicesGlobal
Browserbase, Inc. Service provider for browser-based web access and automation for AI agents.USA, Spain
Cerebras Systems Inc. AIService provider for hosting large language models and embeddings.USA
Cinder Technologies Inc. Service provider for abuse preventionUSA
Cloudflare Content distribution and processing, security, abuse prevention and DNS servicesGlobal
Confluent Kafka managed streaming storage platform used for in-product audit log data and analyticsUSA, Germany, Korea, Japan
Customer.io Transactional, broadcast, and marketing messagingUSA
DeepL Translation servicesUSA
Exa Service provider for providing web search results.USA
Fireworks AICompute infrastructure for serving large language models and powering AI servicesGlobal
Fivetran Data pipeline for connecting systems to our data warehouseUSA, Germany, Korea, Japan
Google LLC Service provider for hosting large language models and embeddings and for abuse preventionGlobal
Mailgun Technologies, Inc. Transactional, broadcast, and marketing messagingUSA
Mathpix, Inc. PDF file conversionUSA, Germany, Singapore
Modal Labs, Inc. Compute infrastructure for serving large language models and powering AI servicesGlobal
OpenAI AIService provider for hosting large language models and embeddings and for abuse preventionGlobal
Parallel Web Systems Service provider for providing web search results and for hosting large language models and embeddingsUSA
PlanetScale, Inc. Hosting and management of large-scale databasesUSA, Germany, Japan
Splunk Security and application loggingUSA
StarTree, Inc. Storage platform used for in-product analyticsUSA, Germany, Korea, Japan
Teleperformance Support services and abuse preventionGreece
Turbopuffer Vector database for storing embeddingsUSA, Germany, Korea, Japan
Twilio Multi-factor AuthenticationUSA
TypeSafe AI, Inc. Service provider for hosting structured classification and other modelsGlobal
Vercel Inc. Compute services that enable code execution and AI agent actions.USA
X.AI LLC AIService provider for hosting large language models and embeddingsUSA, UK

Web TechnologiesCSV · Atom

Notion's homepage made 300 requests to 27 domains, and 15 services controlled by another company.

Advertising (6): Google Cloud, Microsoft, Metadata, Podscribe, X Corp.; reviewed: Claritas, LLCAnalytics (3): NAVER Corp., LinkedIn, MetaMarketing automation (1): AdobeCookie compliance (1): TranscendOther (4): Personalisation: Tailor AI; usually detected as Personalisation: Contentful; usually detected as Issue trackers: Sentry; reviewed as RUM: Splunk

15 third parties by category: Advertising 6Analytics 3Marketing automation 1Cookie compliance 1Other 4

Third parties 15 · 184 requests
Contentful ctfassets.net 34% of the page's requests 101
Google Cloudsubprocessor DoubleClick Floodlight Google Analytics Google Sign-in Google Tag Manager 14% of the page's requests 42
Microsoft Microsoft Advertising 2% of the page's requests 5
Tailor AI Tailor AI 2% of the page's requests 5
NAVER Corp. Naver Analytics 1% of the page's requests 4
Splunksubprocessor splunkcloud.com 1% of the page's requests 4
Adobe Marketo 1% of the page's requests 3
LinkedIn Linkedin Insight Tag 1% of the page's requests 3
Meta Facebook Pixel 2.9.435 1% of the page's requests 3
Metadata Metadata.io 1% of the page's requests 3
Podscribe Podscribe 1% of the page's requests 3
Transcend Transcend 1% of the page's requests 3
X Corp. Twitter Ads 1% of the page's requests 3
Claritas, LLC trkn.us <1% of the page's requests 1
Sentry sentry.io <1% of the page's requests 1
First party 1 · 116 requests
Notion Cloudflare Contentful HSTS Microsoft Clarity Next.js 16.4.2 Open Graph Priority Hints React Sentry Statsig 3.33.3 Turbopack Vercel Vercel Speed Insights 2.0.0 Webpack core-js 3.32.2 39% of the page's requests 116

7 tracked companies loaded by the homepage are not in Notion's subprocessor list. A website can use a service without it processing customer data.

Subprocessor of (99)CSV · Atom

99 companies
  • Albert Invent albertinvent.com Project Management
  • Anrie anrie.ai
  • Autohive autohive.com
  • Blissbook blissbook.com Productivity
  • Blooket blooket.com Documentation and project management
  • BuildBetter buildbetter.ai Review and document customer issues and problems and share amongst the organization.
  • Carta carta.com Provides a cloud-based internal collaboration system, much like an intranet, where we may reference customer data as necessary to deliver and improve the Carta Europe services.
  • Cerebrium cerebrium.ai
  • Chainloop chainloop.dev notion.so
  • Chatwoot chatwoot.com Internal collaboration; Used for internal documentation, knowledge sharing, and team collaboration.
  • Clerk Chat clerk.chat
  • ClickTime clicktime.com Collaboration; Workspace for notes, docs, wikis, projects, and databases. AI-assisted features are enabled for internal ClickTime use only.
  • Climatiq climatiq.io Collaboration; Internal documentation
  • Coefficient coefficient.io internal communication and project management
  • Conveo conveo.ai Collaboration; Processing Activity Description Internal documentation and storage of company knowledge and documents Data Residency / Processing Location European Union (Frankfurt & Ireland) Headquarters Location San Francisco, United States
  • Descript descript.com
  • Devenue devenue.ai Product management tools
  • DitchCarbon ditchcarbon.com Internal documentation and issue tracking
  • Donut donut.com Documentation and note-taking
  • Double doublehq.com Internal database manager
  • Driven driven.work
  • Duffel duffel.com Customer data; Knowledge hub
  • Easol easol.com
  • Escape escape.tech Collaboration
  • Expo expo.dev Team workspace and documentation
  • Fastmail fastmail.com Support services and Business operations
  • Featurebase featurebase.app Internal docs
  • Feedly Threat Intelligence feedly.com Internal Project Management
  • Formspark formspark.io Copies submissions into a Notion database the customer connects
  • FundApps fundapps.co
  • Fundraise Up fundraiseup.com AI processing underpinning Agentic Giving; internal knowledge base
  • Heron herondata.io
  • Honeycomb honeycomb.io Internal Documentation and Collaboration
  • HrFlow hrflow.ai
  • Humanloop humanloop.com Process management
  • Infracost infracost.io Company wiki/project management; Document management
  • Inngest inngest.com
  • Interhubz interhubz.com Internal documentation
  • KrakenD krakend.io
  • Laravel laravel.com Internal knowledge base
  • Levenza levenza.com Docs and knowledge base
  • LiveKit livekit.com Knowledge base
  • Lob.com lob.com
  • Logto logto.io Business Apps & Productivity
  • Lucky Orange luckyorange.com Cloud-based Workspace & Documentation
  • Maestro AI getmaestro.ai Collaboration and productivity
  • marimo marimo.io Collection of feedback and waitlist submissions
  • Marker.io marker.io Internal documents
  • Maybe* maybetech.com Customer support & knowledge base
  • Modern Treasury moderntreasury.com
  • nodedata.io nodedata.io
  • Octopods octopods.io
  • Optro optro.ai Business Facilitation, and AI
  • Paperform paperform.co Processing period: Mar 3, 2019 - present Data disclosed: Incidental data: Some personal information may be shared during the day-to-day operation of Paperform
  • Parabola parabola.io Internal documentation
  • Paragon useparagon.com Internal knowledge base (Customer Data)
  • Paved paved.com Internal Communications
  • Pilosa pilosa.com Internal docs
  • Prisma prisma.io Internal Documentation
  • Qalea qalea.ai Storage
  • Quarterzip quarterzip.ai
  • Qventus qventus.com
  • Read AI read.ai Optional user integration; Optional user-initiated integration
  • Ready ready.net Collaboration; Internal documentation and knowledge management
  • Reducto reducto.ai Operational/development subprocessor; may process product, engineering, security, and customer-related context. No customer document content by design.; Product, engineering, task, and security documentation
  • Relevance AI relevanceai.com Collaboration
  • Resemble AI resemble.ai Notion is a cloud-based collaborative workspace platform that combines documents, wikis, databases, and project management tools into a single interface, enabling teams to organize and share internal knowledge, documentation, and workflows. Resemble AI uses it for internal documentation and knowledge management.
  • Rewst rewst.io Collaborative workspace and documentation platform.
  • Romify romify.io
  • Ruddr ruddr.com Internal knowledge base and intranet platform
  • Scaler Global scalerglobal.com Our documentation is in Notion.
  • SigNoz signoz.io
  • Snappy Gifts snappy.com A collaborative workspace tool Snappy uses to organize internal documentation and coordinate day-to-day operations.; Collaboration/Operations
  • Spendbase spendbase.co Collaboration and knowledge management platform
  • StackGuardian stackguardian.io
  • Stomio stomio.io Internal documentation and knowledge base.
  • StoryChief storychief.io Company Communication
  • SubscriptionFlow subscriptionflow.com Collaboration; Collaboration and productivity
  • Supabase supabase.com Communication with Authorized Users in connection with the provision of the Services and support
  • Supademo supademo.com Collaboration and productivity
  • Superside superside.com
  • Symbe symbe.co Collaboration
  • Tanium tanium.com Enterprise artificial intelligence services for technical support
  • Teleport goteleport.com Project Management and Customer Success
  • Tenzai tenzai.com Internal documentation and knowledge management
  • Tuple tuple.app Company documentation and notes
  • Twingate twingate.com Internal knowledge platform
  • Upstash upstash.com
  • Userflow userflow.com
  • Userlist userlist.com Project management
  • Viktor getviktor.com Workspace/document integration (if enabled by customer)
  • Vxt vxt.co.nz Document management
  • Whalesync whalesync.com Internal wiki
  • Whistic whistic.com Customer Support
  • Workstreet workstreet.com Collaboration
  • YouScan youscan.io Internal Knowledge Base
  • Zero zero.inc Provision of a unified workspace for internal documentation.
  • zig.ai zig.ai Product management tools
  • Zyte zyte.com Project management tool

ComplianceCSV · Atom

Says it complies with

Certifications as Notion's trust center lists them; reports are usually shared on request (evidence)

Service statusCSV · Atom

Aug 15: no incident reportedAug 16: no incident reportedAug 17: no incident reportedAug 18: no incident reportedAug 19: no incident reportedAug 20: no incident reportedAug 21: no incident reportedAug 22: no incident reportedAug 23: no incident reportedAug 24: no incident reportedAug 25: no incident reportedAug 26: no incident reportedAug 27: no incident reportedAug 28: no incident reportedAug 29: no incident reportedAug 30: 2 incidents (1 major, 1 minor)Aug 31: 1 incident (1 minor)Sep 1: no incident reportedSep 2: 1 incident (1 no impact stated)Sep 3: 2 incidents (1 minor, 1 no impact stated)Sep 4: no incident reportedSep 5: no incident reportedSep 6: no incident reportedSep 7: no incident reportedSep 8: no incident reportedSep 9: no incident reportedSep 10: 1 incident (1 no impact stated)Sep 11: 1 incident (1 major)Sep 12: no incident reportedSep 13: no incident reportedSep 14: no incident reportedSep 15: no incident reportedSep 16: 1 incident (1 minor)Sep 17: 2 incidents (2 minor)Sep 18: no incident reportedSep 19: no incident reportedSep 20: no incident reportedSep 21: 1 incident (1 minor)Sep 22: no incident reportedSep 23: 1 incident (1 minor)Sep 24: no incident reportedSep 25: no incident reportedSep 26: no incident reportedSep 27: no incident reportedSep 28: 1 incident (1 no impact stated)Sep 29: 1 incident (1 minor)Sep 30: no incident reportedOct 1: 1 incident (1 minor)Oct 2: no incident reportedOct 3: no incident reportedOct 4: no incident reportedOct 5: 1 incident (1 minor)Oct 6: 2 incidents (1 minor, 1 no impact stated)Oct 7: no incident reportedOct 8: no incident reportedOct 9: no incident reportedOct 10: no incident reportedOct 11: no incident reportedOct 12: no incident reportedOct 13: 2 incidents (2 no impact stated)Oct 14: 1 incident (1 no impact stated)Oct 15: no incident reportedOct 16: no incident reportedOct 17: no incident reportedOct 18: 1 incident (1 minor)Oct 19: no incident reportedOct 20: 2 incidents (1 major, 1 no impact stated)Oct 21: no incident reportedOct 22: 1 incident (1 major)Oct 23: 2 incidents (1 critical, 1 no impact stated)Oct 24: no incident reportedOct 25: no incident reportedOct 26: no incident reportedOct 27: no incident reportedOct 28: no incident reportedOct 29: no incident reportedOct 30: no incident reportedOct 31: no incident reportedNov 1: no incident reportedNov 2: no incident reportedNov 3: no incident reportedNov 4: no incident reportedNov 5: no incident reportedNov 6: no incident reportedNov 7: no incident reportedNov 8: no incident reportedNov 9: no incident reportedNov 10: 1 incident (1 major)Nov 11: no incident reportedNov 12: no incident reported

90 days agotoday

  • 29 incidents in 90 days
  • 6 major or critical
  • 3 h 39 min typical time to resolve
  • 19 h 57 min longest major
BeganIncidentImpactLasted
Some Notion Agent sessions may hang or stop updatingmajor2 h 19 min
Users unable to access Notioncritical3 h 6 min
PHP2Shell (CVE-2026-109618, CVE-2026-109619)no impact stated3 days
Notion MCP query_data_source tool is temporarily unavailable in Claude clientsmajor1 h 19 min
Security update: Preventative certificate security measuresno impact stated5 days
Unable to install connections created by other workspace membersmajor19 h 57 min
Some Notion Agent requests may stop before completionminor3 h 57 min
Cursor-powered Custom Agents unable to load Notion toolsno impact stated3 h 39 min

Incidents per month

0 7 14 Jul 2026: 8 incidents (1 major, 6 minor, 1 no impact stated) · partial: our history begins Jul 10 · typical time to resolve 2 h 1 min Aug 2026: 7 incidents (3 major, 4 minor) · typical time to resolve 47 min Sep 2026: 12 incidents (1 major, 7 minor, 4 no impact stated) · typical time to resolve 2 h 40 min Oct 2026: 13 incidents (1 critical, 2 major, 4 minor, 6 no impact stated) · typical time to resolve 3 h 39 min Nov 2026: 1 incident (1 major) · typical time to resolve 2 h 19 min Jul 2026Aug Sep Oct Nov

critical major minor no impact stated before or partly before our history

As Notion's status page reports its own incidents (scheduled maintenance left out), read every few hours since (evidence)

Incidents reported by Notion's subprocessorsCSV · Atom

345 reported incidents in the last 30 days, by 16 of the vendors Notion lists as subprocessors.

A subprocessor list names a company, not the service an incident touched. This does not show that Notion was involved.

DateCompanyIncidentImpactLasted
OpenAIGPT-image-2.5 and 2.6 Sunburst & Flare High error rate minor32 min
FireworksService Degradation for GLM 5.3 Fast minor30 min
TwilioMMS Delivery Failures from Twilio to GCI United States minor3 min
TwilioSMS Delivery Failures from Twilio 10DLC to AT&T United States minor4 h 3 min
TwilioSMS Delivery Failures from Twilio to Orange Sierra Leone minorongoing
TwilioSMS Delivery Failures From Long Code Numbers to AT&T in the US minor1 h 19 min
TwilioSMS Delivery Delays from Twilio to MTS Kazakhstan minorongoing
TwilioSMS Delivery Failures from a Subset of Twilio Phone Numbers to Tcell Tajikistan minorongoing
OpenAIUnable to start new Workspace Agent runs critical9 h 42 min
TwilioMMS Delivery Delays from a Subset of Twilio Long Codes to Multiple Small Networks in United States minorongoing
TwilioSMS Delivery Failures from a Subset of Twilio Phone Numbers to K-Cell Kazakhstan minor7 h 23 min
FireworksService Degradation for Kimi K3.1 Pro minor2 min
OpenAIElevated errors affecting logins, sign-ups, and ChatGPT features minor8 min
turbopufferDashboard Outage critical—
BasetenModel APIs are down for all models critical21 min
TwilioVoice Call Failures in JP1 minor3 h 51 min
TwilioSMS Delivery Failures from Twilio to Turkcell Turkey minor3 h 54 min
FireworksService Degradation for GLM 5.3 minor24 min
FireworksService Degradation for DeepSeek V4.1 Flash 1017 minor1 h 25 min
TwilioRetroactive Incident Impacting Twilio Usage APIs no impact stated1 min
AnthropicElevated errors on Fable 52 and Mythos 52 no impact stated1 min
TwilioIssue resolved minor1 h 43 min
VercelElevated Sandbox and Blob request latency and errors minor1 min
ModalSome Sandboxes experiencing creation failures minor23 min
TwilioSMS Delivery Receipt Delays from Twilio Phone Numbers to Movistar Venezuela minor3 h 26 min

And 320 more. All of them: CSV · Who is around them.

ChangesCSV · Atom

See the list as we read it on any date: Time machine

None since tracking began.

Rating badge for Notion's site

Notion transparency rating

It updates with the rating.

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