# wandb wandb declares [2 subprocessors](https://thirdpartyindex.com/vendors/wandb#subprocessors) in [its subprocessor list](https://docs.coreweave.com/policies/terms-of-service/sub-processors), which we last checked on 2026-11-11 ([evidence](https://thirdpartyindex.com/evidence/164662)). They are [Microsoft](https://thirdpartyindex.com/vendors/microsoft) and [Backblaze](https://thirdpartyindex.com/vendors/backblaze). No published changes since we first read it on 2026-10-25. [4 tracked vendors](https://thirdpartyindex.com/vendors/wandb#used-by) name wandb as a subprocessor, including [Applied Compute](https://thirdpartyindex.com/vendors/applied-compute), [Welocalize](https://thirdpartyindex.com/vendors/welocalize) and [Klarent](https://thirdpartyindex.com/vendors/klarent). wandb (wandb.ai): subprocessors, data processing agreement, security documents and changes, as monitored by Third Party Index. - Page: https://thirdpartyindex.com/vendors/wandb - Documents last verified: 2026-11-11 - Transparency rating: 87/100 (how much it publishes, not how secure it is): Subprocessor list 30/30; Processing locations 8/8; Purposes 0/7 (partial); 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 5/5; Pages still reachable 8/8 - Part of: [CoreWeave](https://thirdpartyindex.com/vendors/coreweave) - Supply chain: relies on 2 tracked vendors directly, 41 within two hops, 258 within three; 4 tracked vendors rely on it directly, 7 within two hops, 26 within three - Cite as: wandb, Third Party Index, https://thirdpartyindex.com/vendors/wandb (data CC BY 4.0) ## Documents | Document | URL | Last verified | Last changed | |---|---|---|---| | Trust center | https://wandb.ai/trust | 2026-11-11 | 2026-11-10 | | Subprocessor list | https://docs.coreweave.com/policies/terms-of-service/sub-processors | 2026-11-11 | 2026-10-27 | | Data processing addendum | https://wandb.ai/legal/dpa | 2026-11-11 | 2026-11-10 | | Privacy policy | https://wandb.ai/privacy | 2026-11-11 | 2026-11-11 | | Terms | https://wandb.ai/terms | 2026-11-11 | 2026-11-11 | | Security page | https://wandb.ai/security | 2026-11-11 | 2026-11-09 | | Status page | https://status.coreweave.com/ | 2026-11-11 | 2026-11-10 | | Security advisories | https://docs.coreweave.com/policies/coreweave-vulnerability-disclosure-policy | 2026-11-11 | 2026-10-25 | ## Subprocessors (2) As its own list states them. | Subprocessor | Purpose | Location | Listed since | |---|---|---|---| | [Backblaze, Inc.](https://thirdpartyindex.com/vendors/backblaze.md) | — | United States | 2026-10-25 | | [Microsoft Corporation](https://thirdpartyindex.com/vendors/microsoft.md) | — | United States | 2026-10-25 | Read from ([evidence](https://thirdpartyindex.com/evidence/154348)). CSV: https://thirdpartyindex.com/vendors/wandb/subprocessors.csv ## Web Technologies wandb's homepage made 692 requests to 9 domains, and 6 services controlled by another company. Loaded on 2026-11-05 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. 6 third parties by category: Analytics 1 (ZoomInfo); Cookie compliance 1 (OneTrust); Customer data platform 1 (Segment); Feature management 1 (Beamer); RUM 1 (Datadog); Unclassified 1 (Chameleon Intelligent Tech). 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 (6) - OneTrust: 27 requests to cookielaw.org, onetrust.com; OneTrust - Segment: 10 requests to segment.com; Segment 1.84.3 - Datadog: 8 requests to browser-intake-us5-datadoghq.com; Datadog - Beamer: 2 requests to getbeamer.com; Beamer - ZoomInfo: 2 requests to zoominfo.com; Zoominfo - Chameleon Intelligent Tech: 1 request to chameleon.io ### First party (1) - wandb: 642 requests to coreweave.com, wandb.ai; Cloudflare, Google Cloud, Google Cloud CDN, HTTP/3, Lodash, Prism, React, React Router 7.18.0 5 tracked companies loaded by the homepage are not in wandb's subprocessor list. A website can use a service without it processing customer data. ## Subprocessor of (4) Tracked vendors whose own subprocessor lists name it, and what they say they use it for. - [Applied Compute](https://thirdpartyindex.com/vendors/applied-compute.md): ML experiment tracking - [Klarent](https://thirdpartyindex.com/vendors/klarent.md): Development software - [marimo](https://thirdpartyindex.com/vendors/marimo.md): AI-assisted code completion and notebook generation - [Welocalize](https://thirdpartyindex.com/vendors/welocalize.md): AI experiment tracking ## Service status Incidents it reported on its own status page. - Last 20 days: 3 reported incidents (0 major or critical, 0 minor, 3 with no impact stated) - Typical time to resolve: 11 days - Status page last read: 2026-11-12 - Under way: Storage Service Degradation (no impact stated), since 2026-11-05 15:13 UTC - Under way: Object Storage Service Degradation in US-EAST-04 (no impact stated), since 2026-11-02 16:59 UTC - 2026-11-05: Storage Service Degradation (no impact stated) - 2026-11-02: Object Storage Service Degradation in US-EAST-04 (no impact stated) - 2026-10-22: Facility power incident impacting services in US-EAST-15A (no impact stated) The subprocessor list as we read it on any date: https://thirdpartyindex.com/labs/time-machine/wandb --- 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