Tracked subprocessors 18 of 21 Subprocessor of 4 Third parties loaded 10 Loaded by 1
+ − ⟲
21 third parties.
Name Purpose Location Listed since Amplitude Customer analytics processor United States Oct 26, 2026 Bucket.co Feature flagging United States Oct 26, 2026 Castle.io Security & Bots detection United States Oct 26, 2026 ClearbitSign Sign-up risk evaluation United States Oct 26, 2026 Clickhouse Database infrastructure United States Oct 26, 2026 Cloudflare Hosting provider United States Oct 26, 2026 DocuSign Contract signature processor United States Oct 26, 2026 Google Analytics Website analytics and performance United States Oct 26, 2026 Google Apps Internal company infrastructure United States Oct 26, 2026 Google Cloud / Firebase Hosting and database infrastructure United States Oct 26, 2026 Iframely Embeds generation United States Oct 26, 2026 Intercom Customer support ticketing system United States Oct 26, 2026 MagicBell Notifications infrastructure United States Oct 26, 2026 OpenAI AI AI infrastructure United States Oct 26, 2026 Planetscale Database infrastructure United States Oct 26, 2026 Segment Customer analytics processor United States Oct 26, 2026 Sendgrid Email infrastructure United States Oct 26, 2026 Sentry Error analytics processor United States Oct 26, 2026 Stripe Subscription credit card payment processor United States Oct 26, 2026 Turbopuffer Search infrastructure United States Oct 26, 2026 Vercel Hosting (data & compute) United States Oct 26, 2026
GitBook's homepage made 159 requests to 21 domains, and 10 services controlled by another company.
Analytics (4): HubSpot, Amplitude, LinkedIn, Leadfeeder Advertising (3): Google Cloud, Reddit, Inc.; usually detected as Advertising: Microsoft Marketing automation (1): Distro Other (2): usually detected as Font scripts: Font Awesome; Page builders: Framer 10 third parties by category: Analytics 4 Advertising 3 Marketing automation 1 Other 2
Third parties 10 · 122 requests
Framer Framer Sites 54% of the page's requests 86 Google Cloud subprocessor DoubleClick Floodlight Google Analytics Google Tag Manager 7% of the page's requests 11 Microsoft clarity.ms 4% of the page's requests 7 HubSpot HubSpot HubSpot Analytics 3% of the page's requests 4 Amplitude subprocessor Amplitude 2% of the page's requests 3 Font Awesome fontawesome.com 2% of the page's requests 3
LinkedIn Linkedin Insight Tag 2% of the page's requests 3 Reddit, Inc. Reddit Ads 1% of the page's requests 2
Distro Distro <1% of the page's requests 1
First party 1 · 37 requests
GitBook Cloudflare Framer Motion GitBook Google Font API HSTS HTTP/3 Linkedin Ads Microsoft Clarity Open Graph Priority Hints React 23% of the page's requests 37
5 tracked companies loaded by the homepage are not in GitBook's subprocessor list. A website can use a service without it processing customer data.
Aug 15: no incident reported Aug 16: no incident reported Aug 17: 1 incident (1 minor) Aug 18: no incident reported Aug 19: no incident reported Aug 20: no incident reported Aug 21: no incident reported Aug 22: no incident reported Aug 23: no incident reported Aug 24: no incident reported Aug 25: no incident reported Aug 26: no incident reported Aug 27: no incident reported Aug 28: no incident reported Aug 29: no incident reported Aug 30: no incident reported Aug 31: no incident reported Sep 1: no incident reported Sep 2: no incident reported Sep 3: no incident reported Sep 4: no incident reported Sep 5: 1 incident (1 critical) Sep 6: no incident reported Sep 7: no incident reported Sep 8: no incident reported Sep 9: no incident reported Sep 10: no incident reported Sep 11: no incident reported Sep 12: no incident reported Sep 13: no incident reported Sep 14: no incident reported Sep 15: no incident reported Sep 16: no incident reported Sep 17: no incident reported Sep 18: no incident reported Sep 19: no incident reported Sep 20: no incident reported Sep 21: no incident reported Sep 22: no incident reported Sep 23: no incident reported Sep 24: no incident reported Sep 25: no incident reported Sep 26: no incident reported Sep 27: no incident reported Sep 28: no incident reported Sep 29: no incident reported Sep 30: no incident reported Oct 1: no incident reported Oct 2: no incident reported Oct 3: no incident reported Oct 4: no incident reported Oct 5: no incident reported Oct 6: no incident reported Oct 7: no incident reported Oct 8: no incident reported Oct 9: no incident reported Oct 10: no incident reported Oct 11: no incident reported Oct 12: no incident reported Oct 13: no incident reported Oct 14: no incident reported Oct 15: no incident reported Oct 16: no incident reported Oct 17: no incident reported Oct 18: no incident reported Oct 19: no incident reported Oct 20: no incident reported Oct 21: no incident reported Oct 22: no incident reported Oct 23: no incident reported Oct 24: no incident reported Oct 25: no incident reported Oct 26: no incident reported Oct 27: no incident reported Oct 28: 1 incident (1 minor) Oct 29: no incident reported Oct 30: no incident reported Oct 31: no incident reported Nov 1: no incident reported Nov 2: 2 incidents (1 critical, 1 major) Nov 3: 1 incident (1 critical) Nov 4: 1 incident (1 major) Nov 5: no incident reported Nov 6: no incident reported Nov 7: no incident reported Nov 8: no incident reported Nov 9: no incident reported Nov 10: no incident reported Nov 11: no incident reported Nov 12: no incident reported 90 days ago today
7 incidents in 90 days5 major or critical7 h 18 min typical time to resolve30 h 7 min longest majorIncidents per month 0 2 4 Dec 2025: 1 incident (1 critical) · typical time to resolve 59 min Jan 2026: 0 incidents Feb 2026: 1 incident (1 critical) · typical time to resolve 21 min Mar 2026: 2 incidents (2 major) · typical time to resolve 4 h 4 min Apr 2026: 1 incident (1 major) · typical time to resolve 13 h 22 min May 2026: 2 incidents (2 major) · typical time to resolve 2 h 22 min Jun 2026: 3 incidents (1 critical, 2 major) · typical time to resolve 1 h 28 min Jul 2026: 0 incidents Aug 2026: 1 incident (1 minor) · typical time to resolve 7 h 18 min Sep 2026: 1 incident (1 critical) · typical time to resolve 4 min Oct 2026: 1 incident (1 minor) · typical time to resolve 14 h 32 min Nov 2026: 4 incidents (2 critical, 2 major) · typical time to resolve 8 h 25 min Dec 2025 Jan 2026 Feb Mar Apr May Jun Jul Aug Sep Oct Nov critical major minor no impact stated
As GitBook's status page reports its own incidents (scheduled maintenance left out), read every few hours since Sep 16, 2025 (evidence )
272 reported incidents in the last 30 days, by 12 of the vendors GitBook lists as subprocessors.
A subprocessor list names a company, not the service an incident touched. This does not show that GitBook was involved.
Date Company Incident Impact Lasted Nov 12, 2026 SendGrid· Segment MMS Delivery Failures from Twilio to GCI United States minor 3 min Nov 12, 2026 SendGrid· Segment SMS Delivery Failures from Twilio Long Codes to AT&T United States minor ongoing Nov 12, 2026 SendGrid· Segment SMS Delivery Failures from Twilio to Orange Sierra Leone minor ongoing Nov 12, 2026 SendGrid· Segment SMS Delivery Failures From Long Code Numbers to AT&T in the US minor 1 h 19 min Nov 11, 2026 SendGrid· Segment SMS Delivery Delays from Twilio to MTS Kazakhstan minor ongoing Nov 11, 2026 SendGrid· Segment SMS Delivery Failures from a Subset of Twilio Phone Numbers to Tcell Tajikistan minor ongoing Nov 11, 2026 OpenAI Unable to start new Workspace Agent runs critical ongoing Nov 11, 2026 SendGrid· Segment MMS Delivery Delays from a Subset of Twilio Long Codes to Multiple Small Networks in United States minor ongoing Nov 11, 2026 SendGrid· Segment SMS Delivery Failures from a Subset of Twilio Phone Numbers to K-Cell Kazakhstan minor ongoing Nov 11, 2026 OpenAI Elevated errors affecting logins, sign-ups, and ChatGPT features minor 8 min Nov 11, 2026 turbopuffer Dashboard Outage critical — Nov 11, 2026 Sentry US issues feed throwing intermittent errors minor 51 min Nov 11, 2026 SendGrid· Segment Voice Call Failures in JP1 minor 3 h 51 min Nov 11, 2026 Segment On Call Engineers are Investigating no impact stated ongoing Nov 11, 2026 ClickHouse Provisioning and scaling operations may take longer in AWS ap-northeast-1 Tokyo minor 7 h 38 min Nov 11, 2026 SendGrid· Segment SMS Delivery Failures from Twilio to Turkcell Turkey minor 3 h 54 min Nov 11, 2026 Sentry Account emails not being delivered major 42 min Nov 11, 2026 SendGrid· Segment Retroactive Incident Impacting Twilio Usage APIs no impact stated 1 min Nov 10, 2026 SendGrid· Segment Issue resolved minor 1 h 43 min Nov 10, 2026 Sentry EU region replay ingestion latency minor 48 min Nov 10, 2026 Vercel Elevated Sandbox and Blob request latency and errors minor 1 min Nov 10, 2026 SendGrid· Segment SMS Delivery Receipt Delays from Twilio Phone Numbers to Movistar Venezuela minor 3 h 26 min Nov 10, 2026 SendGrid· Segment Gateway API (Lookup API) Failure Increase on Verizon in United States minor 10 h 23 min Nov 10, 2026 OpenAI Incorrect cost data in Costs API exports no impact stated 2 h 20 min Nov 9, 2026 OpenAI Elevated Errors On API minor 42 min
And 247 more. All of them: CSV · Who is around them .
See the list as we read it on any date: Time machine
None since tracking began.