AI search fix

Nginx: allow AI bots safely

To allow AI bots safely in Nginx, define explicit conditions for trusted crawler user-agents and keep default protections for unknown automation. Nginx should return normal 200 responses to allowed bots on public pages and avoid accidental blocks from generic anti-bot snippets in server blocks. Server policy must match robots.txt: if one layer allows and another denies, crawl behaviour becomes inconsistent. After changes, test with logs and sample user-agent requests. Allowing AI bots improves access; it does not guarantee citations.

Many Nginx stacks inherit deny rules from old templates that catch trusted bots. Review all included config files before editing a single location block — a hidden include may still return 403 to GPTBot.

Nginx allow pattern for AI crawlers

Document which user-agents your robots.txt permits.
Map each string in an if or map block — avoid brittle copy-paste deny lists.
Return 200 for public HTML paths; log 403 sources for debugging.
Ensure upstream caches do not strip or rewrite User-Agent tests.
Re-test after deploy with curl -A and live access logs.

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See what AI crawlers hit on your site

Technical blockers, missing context, weak AI-readiness signals — in one HTML report.

You'll get an HTML report on robots.txt and likely server or edge blocks for AI crawlers.

Frequently asked questions

Should I disable all bot blocking in Nginx?

No. Allow only the AI crawlers your policy welcomes; keep rate limits for unknown automation.

Does Nginx see bots when Cloudflare proxies traffic?

Often yes on origin logs, but edge blocks may prevent requests arriving. Check both layers.

Can one map block cover every AI bot?

You can group trusted strings, but explicit lists are easier to audit and safer to maintain.

Updated 2026-05-31