Bot intelligence record

GoogleAgent-Mariner

Review first

GoogleAgent-Mariner is an AI crawler from Google used for AI crawler discovery, assistant retrieval, AI search support, or model-related web access; it appears in server logs as `GoogleAgent-Mariner`.

Ai Agentic Browsing Observed Confidence: High Verified: Yes robots.txt: Yes
Operator
Google
Type
Ai
Source type
Official
Last checked
2026-06-23

User-Agent Pattern

Google
GoogleAgent-Mariner
Verification note

User-agent strings are identification signals, not proof of identity. Confirm important allow, block, or rate-limit decisions with logs, DNS or IP evidence, request behavior, or operator documentation when available.

Robots.txt Snippet

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User-agent: GoogleAgent-Mariner
Disallow: /

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Handling Guidance

Depends

Use this record as bot intelligence, then verify the request source and behavior before allowing, blocking, or rate limiting.

GoogleAgent-Mariner is used for AI crawler discovery, assistant retrieval, AI search support, or model-related web access.

Record Details

Structured data
Operator
Google
Family
Google Mariner
Type
Ai
Purpose
Agentic Browsing
Identity type
Observed
Confidence
High
Last verified
2026-06-23
Last checked
2026-06-23
Source type
Official
Verification
Verify GoogleAgent-Mariner by matching `GoogleAgent-Mariner` to Google evidence, then checking reverse DNS, source-network ownership, signed request data, or published crawler documentation when available.
Spoofing risk
GoogleAgent-Mariner has medium spoofing risk because the user-agent can be copied, even when the bot has strong source or documentation support.

Notes

  • GoogleAgent-Mariner is an AI crawler from Google used for AI crawler discovery, assistant retrieval, AI search support, or model-related web access.
  • Its primary user-agent pattern is GoogleAgent-Mariner.
  • GoogleAgent-Mariner is verified with High confidence. The identity type is Observed, and the evidence basis is official operator documentation.
  • GoogleAgent-Mariner is marked as respecting robots.txt directives for crawler access control.
  • GoogleAgent-Mariner should be handled according to the site owner’s AI crawler policy, with allow, block, or rate-limit rules applied deliberately.
  • GoogleAgent-Mariner belongs to the Google Mariner bot family.

Evidence and Source

  • Verify GoogleAgent-Mariner by matching `GoogleAgent-Mariner` to Google evidence, then checking reverse DNS, source-network ownership, signed request data, or published crawler documentation when available.
  • GoogleAgent-Mariner traffic is primarily detected by the `GoogleAgent-Mariner` user-agent pattern. Compare source IPs, reverse DNS, request paths, and crawl cadence with Google infrastructure before trusting the traffic.
  • GoogleAgent-Mariner is used for AI crawler discovery, assistant retrieval, AI search support, or model-related web access.
  • GoogleAgent-Mariner has medium spoofing risk because the user-agent can be copied, even when the bot has strong source or documentation support.

https://developers.google.com/crawling/docs/crawlers-fetchers/google-common-crawlers

Same operator: Google

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Operator and family: Google Type: Content Crawler Purpose: Content Discovery
Verified robots.txt: Yes Block: Monitor Documented
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Operator and family: Google Type: Validator Purpose: Validation And Testing
Verified robots.txt: Yes Block: Allow Documented
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Operator and family: Google Type: Security Scanner Purpose: Security Scanning
Verified robots.txt: Yes Block: Monitor Documented
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Operator and family: Google Type: Content Crawler Purpose: Content Discovery
Verified robots.txt: Yes Block: Monitor Documented
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