Centinel AnalyticaGoogleAgent-Mariner
GoogleAgent-Mariner is an AI agent created by Google that can use a web browser. It can intelligently navigate and interact with websites to complete multi-step tasks on behalf of a human user.
At a glance
- Operator: Google
- Type: AI Assistant
- RSL category:
ai-input
How Centinel checks it
- User agent: The request calls itself this crawler. Anyone can send the same string.
- IP ranges: The operator publishes the addresses it crawls from, and Centinel checks the client address against that list.
- Reverse DNS: The client address resolves to a hostname the operator controls, and that hostname resolves back to the same address.
A request that passes one of these checks is GoogleAgent-Mariner itself. One that only matches the user agent is reported as unverified. The match tokens, verification domains, and address feeds are not published here.
Allowing or blocking it
The crawler object in the /validate response sets access_allowed to true only for a verified source that your tenant allowlists. A policy rule can allow or block this crawler by its category, AI Assistant.