Google-Extended
Controls whether your content trains Gemini and Vertex AI. A robots.txt token, not a separate crawler.
| Operator | |
| Role | Training crawlerCrawls public content to train future AI models. Blocking it is a policy choice, not a visibility fix. |
| User agent token | Google-Extended |
| robots.txt | The operator documents honouring robots.txt. |
| Operator docs | developers.google.com |
Allow or block Google-Extended in robots.txt
Add either rule to the robots.txt at your site root. robots.txt is a request, not a lock: this operator documents honouring it, so the rule is normally enough.
Allow
User-agent: Google-Extended Allow: /
Block
User-agent: Google-Extended Disallow: /
Other Google crawlers
- GoogleOtherOn-demand fetcher
- GooglebotSearch index crawler
Is Google-Extended allowed on your site right now?
The free checker reads your robots.txt and probes your site as each AI crawler, so you see the policy and the reality in one pass.