Should I block AI crawlers?

That is a business and policy decision. The scanner checks whether the robots.txt outcome is explicit, reachable, and aligned with your public discovery goals.

Can robots.txt prevent every AI fetch?

No. robots.txt is honored by cooperative automated crawlers. User-directed agents and non-compliant clients may behave differently.

Free tool

AI Crawler Access Checker

This checker focuses on whether crawler policy matches your intent for GPTBot, OAI-SearchBot, ClaudeBot, PerplexityBot, Google-Extended, and ordinary search crawlers.

Surface: Free tool
Scope: Public web evidence
Auth: None required
Schema: SoftwareApplication

Answer first

What it checks

The scan fetches robots.txt, resolves key user-agent rules, checks sitemap references, and reports whether AI crawler access is explicit or ambiguous.

Detail 01

Policy over preference

isitready.dev does not tell you which bots to allow. It flags unclear rules, blocked launch-critical paths, and discovery files that policy accidentally hides.

Detail 02

Verify after changes

Robots changes can take time to propagate through crawler systems. Re-scan immediately for syntax and access evidence, then monitor actual crawler behavior separately.

FAQ

Common questions

Should I block AI crawlers?: That is a business and policy decision. The scanner checks whether the robots.txt outcome is explicit, reachable, and aligned with your public discovery goals.
Can robots.txt prevent every AI fetch?: No. robots.txt is honored by cooperative automated crawlers. User-directed agents and non-compliant clients may behave differently.