Google-Agent
Operated by Google
Cryptographically verifiable
User-directed agent
Intermediary access
What it does
Used by agents hosted on Google infrastructure to navigate the web and perform actions on a user's request.
How to identify it
- User agent
-
Google-Agent - Request signing
- Publishes 5 keys at https://agent.bot.goog/.well-known/http-message-signatures-directory
- robots.txt
- The operator documents that this fetcher generally ignores robots.txt.
- First seen
- 2026-03
Worth knowing
Google states that because the fetch was requested by a user, these fetchers generally ignore robots.txt, and it publishes no robots.txt token for them. Only a subset of requests are signed today, so Google recommends still matching on IP range and user agent. Match the substring Google-Agent rather than parsing the string: the desktop example in Google's own documentation is malformed.