How GitBook serves 30,000 sites with sub-second content updates
GitBook hosts 30,000 documentation sites on Vercel, serving 120 million monthly page views with sub-second content updates after each merge. The platform uses tag-based cache invalidation to ensure changes are globally visible within 300 milliseconds without disrupting unrelated sites. With 41% of traffic now coming from AI crawlers, GitBook's infrastructure must handle both scale and unpredictability while maintaining consistency and speed.
- ▪GitBook serves 120 million monthly page views from the edge using Vercel.
- ▪The platform processes 40,000 cache invalidations daily, each resolved in under 300ms.
- ▪41% of GitBook's traffic in 2025 came from AI crawlers and automated systems.
- ▪GitBook uses tag-based cache invalidation to selectively update only changed content.
- ▪Companies like n8n, Nvidia, and Zoom use GitBook for their documentation.
Opening excerpt (first ~120 words) tap to expand
4 min readCopy URLCopied to clipboard!May 1, 2026Link to headingGitBook on Vercel30,000 documentation sites hosted on a single Vercel deployment120 million monthly page views served from the edge40,000 cache invalidations processed daily, each resolved in under 300ms41% of all traffic now comes from AI crawlers and automated systemsGitBook hosts 30,000 documentation sites on Vercel, serving 120 million page views every month. Companies like n8n, Nvidia, and Zoom trust the platform to keep their docs fast and current.
…
Excerpt limited to ~120 words for fair-use compliance. The full article is at Vercel News.
