Google-Extended
- Class
- Control token
- robots.txt
- Says it honours robots.txt
- Governs Gemini training and grounding. Does not affect Search inclusion or ranking.
How it works
No request will ever arrive with this name. It exists only as a robots.txt token, so blocking it at a firewall does nothing.
Blocking it
User-agent: Google-Extended
Disallow: /Last reviewed Nov 2, 2026