AI Training
Safe & LegitimateOperator: Google

Google-Extended

Google-Extended is a standalone token introduced by Google that allows webmasters to opt out of having their content used to train Google's Gemini generative AI models and Vertex AI without affecting regular Google Search indexation by Googlebot.

Audit Your Site for Google-Extended

Technical Specifications

User-Agent TokenGoogle-Extended
Operator / OwnerGoogle
Primary PurposeGoogle Gemini & generative AI model training opt-out
SEO ImpactNo SEO Impact
Respects robots.txtStandard Compliant (RFC 9309)
Reverse DNS Hostnamegoogle.com
Official DocumentationOperator Docs

Frequently Asked Questions

Does blocking Google-Extended hurt my Google Search rankings?

No. Google explicitly designed Google-Extended so that blocking it does NOT impact your rankings in regular Google Search or Discover.

How do I block Google-Extended?

User-agent: Google-Extended Disallow: /

How to Allow Google-Extendedrobots.txt

Ensure this bot can index your public pages for citations.

# Allow Google-Extended
User-agent: Google-Extended
Allow: /
How to Block Google-Extendedrobots.txt

Prevent this bot from accessing any content on your domain.

# Block Google-Extended
User-agent: Google-Extended
Disallow: /

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