# What is Google-Agent?

> Google-Agent is the user agent Google uses when an AI agent on its infrastructure visits a site to complete a user's task, like checking a booking page.

_UK and US · Updated 2026-10-27 · Akkrev, https://akkrev.com/glossary/google-agent/_

**Google-Agent** is a user agent Google added to its list of user-triggered fetchers in March 2026. It appears in server logs when an AI agent running on Google's infrastructure, such as Project Mariner, visits a site to do something a person asked: browse pages, check details, or submit a form.

## How it differs from Googlebot

Googlebot crawls the web in the background to build Google's index. Google-Agent visits because a specific user asked for a task right now. Google's John Mueller has said a basic of the agent era is "not blindly blocking agentic browsers".

## What hotels should check

- Whether security settings or a firewall block Google's published IP ranges for agents.
- Whether booking forms and multi-step flows work for automated visitors.
- Server logs for Google-Agent visits, to see whether agents are already trying.

Related: [agentic browser](https://akkrev.com/glossary/agentic-browser/), [Google-Extended](https://akkrev.com/glossary/google-extended/).

## Why it matters for AI visibility

Google's agents work from Google's data. A complete Business Profile and accurate facts are the base for being chosen.

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