Baseline Labs wiki / Bot
GoogleAgent-Mariner
Bot in AI search and SEO
Stub
Project Mariner, the Google browsing agent that navigates sites and performs multi-step tasks on behalf of a user. Early-stage and low-volume, but a preview of what agentic traffic will look like at Google scale.
Verification
Operator documentation: https://developers.google.com/search/docs/crawling-indexing/google-user-triggered-fetchers
A user agent is a claim, not a proof: any client can send any name. Where an operator publishes IP ranges, a reverse lookup is the only way to tell a real visit from an impersonation.
Seen by Baseline
Requests, 30 days
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Last 7 days
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First seen
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Last seen
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Requests from this bot across sites tracked by Baseline, last 30 days. Aggregated over - sites, never reported per site.
Last updated 2026-09-04. Written and maintained by Baseline Labs.
