AI Model Controls
Google-Extended (Gemini) Access Checker
Google's control token enabling webmasters to opt-out of having their public site data used to train Gemini and Vertex AI models.
Verify Robots.txt blocks for Google-Extended (Gemini)
Enter your domain to run a live AI crawl check auditing user agent directives.
Official User-Agent String
Google-Extended (Evaluated as a robots.txt directive token under Googlebot checks)Verification Directives
To Block Crawler (Disallow)
User-agent: Google-Extended Disallow: /
To Allow Crawler (Allow)
User-agent: Google-Extended Allow: /
Google-Extended (Gemini) Search Optimization FAQs
Q: What is Google-Extended?
Google-Extended is a robots.txt token introduced by Google that gives webmasters control over Gemini model data ingestion.
Q: Does disallowing Google-Extended block Google Search?
No. Disallowing Google-Extended only blocks Gemini training. Googlebot will still index your site for standard Google Search results.
Q: Why should I use Google-Extended?
It is the only official way to opt out of Google's AI training models without losing your presence in Google Search.