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Crawlmind
Home/Glossary/Google-Extended

AI crawlers

Google-Extended

Updated 2026-05-17

Google-Extended is Google's user-agent for AI training and AI Overviews — separate from Googlebot, which still controls classic search indexing. Blocking Google-Extended opts you out of Gemini training and AI Overviews surfacing without affecting your standard Google ranking.

Block AI training only

User-agent: Google-Extended
Disallow: /

User-agent: Googlebot
Allow: /

This posture keeps you indexed in classic Google search while opting out of Gemini training + AI Overviews.

Where this comes up

See how your site scores on Google-Extended + every other AI-discoverability signal.

Free audit