# Lark Lark declares [7 subprocessors](https://thirdpartyindex.com/vendors/lark#subprocessors) in [its subprocessor list](https://www.larksuite.com/en_us/legal/sub-processors), which we last checked on 2026-11-11 ([evidence](https://thirdpartyindex.com/evidence/46991)). They include [Amazon Web Services](https://thirdpartyindex.com/vendors/amazon-web-services), [Google Cloud](https://thirdpartyindex.com/vendors/google-cloud) and [Microsoft](https://thirdpartyindex.com/vendors/microsoft). No published changes since we first read it on 2026-10-05. [1 tracked vendor](https://thirdpartyindex.com/vendors/lark#used-by), [Retell AI](https://thirdpartyindex.com/vendors/retell-ai), names Lark as a subprocessor. Lark (larksuite.com): subprocessors, data processing agreement, security documents and changes, as monitored by Third Party Index. - Page: https://thirdpartyindex.com/vendors/lark - 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 6 tracked vendors directly, 46 within two hops, 192 within three; 1 tracked vendors rely on it directly, 11 within two hops, 93 within three - Cite as: Lark, Third Party Index, https://thirdpartyindex.com/vendors/lark (data CC BY 4.0) ## Documents | Document | URL | Last verified | Last changed | |---|---|---|---| | Trust center | https://www.larksuite.com/en\_us/trust?from=footer | 2026-11-11 | 2026-11-08 | | Subprocessor list | https://www.larksuite.com/en\_us/legal/sub-processors | 2026-11-11 | 2026-10-05 | | Data processing addendum | https://www.larksuite.com/en\_us/legal/data-processing-addendum | 2026-11-11 | 2026-09-22 | | Privacy policy | https://www.larksuite.com/en\_us/privacy-policy?from=footer | 2026-11-11 | 2026-09-22 | | Terms | https://www.larksuite.com/en\_us/customer-terms-of-service?from=footer | 2026-11-11 | 2026-11-10 | | Security page | https://www.larksuite.com/en\_us/trust/security?from=apac\_trustModule | 2026-11-11 | 2026-11-02 | | Status page | https://status.larksuite.com/ | 2026-11-11 | 2026-09-22 | ## Subprocessors (7) As its own list states them. | Subprocessor | Purpose | Location | Listed since | |---|---|---|---| | [Akamai Technologies Inc.](https://thirdpartyindex.com/vendors/akamai.md) | CDN | United States | 2026-10-05 | | [Amazon Web Services, Inc.](https://thirdpartyindex.com/vendors/amazon-web-services.md) | Cloud Provider | United States | 2026-10-05 | | [Apple Inc.](https://thirdpartyindex.com/vendors/apple.md) | iOS APNs Service | United States | 2026-10-05 | | [Fastly, Inc.](https://thirdpartyindex.com/vendors/fastly.md) | CDN | United States | 2026-10-05 | | [Google LLC.](https://thirdpartyindex.com/vendors/google-cloud.md) | CDN; GCP GenAI; Google FCM Push SDK; Google Login SDK; Google Maps SDK; QUIC - Self-built QUIC in GCP | United States | 2026-10-05 | | [Microsoft Corporation](https://thirdpartyindex.com/vendors/microsoft.md) (AI model provider: Azure OpenAI) | Azure Open AI; Form Recognizer; Speech to Text | United States | 2026-10-05 | | Spamhaus Project SLU | Email Spam Detection | Switzerland | 2026-10-05 | Read from ([evidence](https://thirdpartyindex.com/evidence/46991)). CSV: https://thirdpartyindex.com/vendors/lark/subprocessors.csv AI model providers (or a cloud provider's AI model service) among these entries: 1. All vendors that list one: https://thirdpartyindex.com/ai ## Web Technologies Lark's homepage made 286 requests to 21 domains, 7 services controlled by another company, and 1 domain not identified. Loaded on 2026-11-11 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. 7 third parties by category: Analytics 3 (HubSpot, Factors.ai, LinkedIn); Advertising 2 (Google Cloud, X Corp.); Live chat 1 (reviewed: Intercom); Unclassified 1 (ByteDance). 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 (7) - Google Cloud: 25 requests to google.com, doubleclick.net, googletagmanager.com; DoubleClick Floodlight, Google Analytics, Google Sign-in, Google Tag Manager (its subprocessor list names it too) - HubSpot: 7 requests to hubspot.com, hs-analytics.net, hs-banner.com, hs-scripts.com, hsforms.com; HubSpot, HubSpot Analytics - Factors.ai: 6 requests to factors.ai; Factors.ai - Intercom: 5 requests to intercom.io, intercomcdn.com - LinkedIn: 5 requests to linkedin.com, licdn.com; Linkedin Insight Tag - ByteDance: 3 requests to bytedapm.com - X Corp.: 3 requests to ads-twitter.com, t.co, twitter.com; Twitter Ads ### Unknown (1) Domains not identified yet: iapplogcdn.com ### First party (1) - Lark: 231 requests to larksuitecdn.com, larksuite.com, feishucdn.com; Axios, Babel, Intercom, Open Graph, Priority Hints, React 16.13.1, core-js 2.6.11 5 tracked companies loaded by the homepage are not in Lark's subprocessor list. A website can use a service without it processing customer data. ## Subprocessor of (1) Tracked vendors whose own subprocessor lists name it, and what they say they use it for. - [Retell AI](https://thirdpartyindex.com/vendors/retell-ai.md) ## Incidents reported by Lark's subprocessors Incidents reported in the last 30 days on their own status pages by 1 vendor Lark lists as a subprocessor. A subprocessor list names a company, not the service an incident touched. - 2026-11-03: [Akamai](https://thirdpartyindex.com/vendors/akamai#status), which Lark lists as a subprocessor, reported Property Manager Property Activation Errors (no impact stated) - 2026-10-30: [Akamai](https://thirdpartyindex.com/vendors/akamai#status), which Lark lists as a subprocessor, reported Customer Security Advisory: CVE-2026-98432 (no impact stated) - 2026-10-27: [Akamai](https://thirdpartyindex.com/vendors/akamai#status), which Lark lists as a subprocessor, reported Performance Degradation for Customers in Mumbai and Chennai (no impact stated) - 2026-10-27: [Akamai](https://thirdpartyindex.com/vendors/akamai#status), which Lark lists as a subprocessor, reported Enterprise Application Access (EAA) Connector Issues (minor) - 2026-10-25: [Akamai](https://thirdpartyindex.com/vendors/akamai#status), which Lark lists as a subprocessor, reported Edge Delivery issues between Indonesia and Singapore (minor) - 2026-10-23: [Akamai](https://thirdpartyindex.com/vendors/akamai#status), which Lark lists as a subprocessor, reported Customer Security Advisory: Brotli Remote Code Execution Vulnerabilities \[CVE-2026-111497\] (no impact stated) - 2026-10-22: [Akamai](https://thirdpartyindex.com/vendors/akamai#status), which Lark lists as a subprocessor, reported Customer Security Advisory: Critical F5/NGINX Out-of-Band Vulnerabilities (no impact stated) - 2026-10-21: [Akamai](https://thirdpartyindex.com/vendors/akamai#status), which Lark lists as a subprocessor, reported Edge Delivery Secure CDN platform at Risk of Capacity Issues (no impact stated) - 2026-10-21: [Akamai](https://thirdpartyindex.com/vendors/akamai#status), which Lark lists as a subprocessor, reported Web Security Analytics, Reporting and Configuration Deployment Issues (minor) - 2026-10-21: [Akamai](https://thirdpartyindex.com/vendors/akamai#status), which Lark lists as a subprocessor, reported Customer Security Advisory: PHP Remote Code Execution Vulnerabilities (no impact stated) - 2026-10-21: [Akamai](https://thirdpartyindex.com/vendors/akamai#status), which Lark lists as a subprocessor, reported NetStorage issues in Los Angeles (minor) The subprocessor list as we read it on any date: https://thirdpartyindex.com/labs/time-machine/lark --- 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