About this bot
Vercel build container is an automated identity associated with Vercel and used for build-time resource fetching.
Primary documented identity: vercel-build-container.
Directory status: Active. Identity classification: Verified with High confidence. Identity type: official-documented.
robots.txt behavior is currently unconfirmed.
Risk classification: Neutral. Recommended handling: depends.
How to identify this bot
- User-agent and crawler identifiers
-
vercel-build-container
Details
- Kind
- Build fetcher
- Family
- Vercel
- Purpose
- Build time resource fetching
- Common Use
- System-initiated outbound requests from Vercel build containers during a deployment/build, including fetching build-time resources.
- Respects robots.txt
- Unknown
Verification
- Identity Type
- Officially documented
- Evidence Method
- Match the documented `vercel-build-container` identity in Vercel build/deployment context; UA/token alone remains spoofable.
- Detection Notes
- This is Vercel build-container traffic, not an AI-training crawler.
Website controls
- Robots.txt Snippet
# robots.txt behavior is unconfirmed. Use server-side controls if restriction is required.- Apache Rule
SetEnvIfNoCase User-Agent "vercel-build-container" bot_match- Nginx Rule
if ($http_user_agent ~* "vercel-build-container") { set $bot_match 1; }