Bot intelligence record

Chrome-Lighthouse

Review first

Use the Chrome-Lighthouse identifier to separate Google search indexing or content discovery traffic from normal visitor requests in server logs.

Search Indexing Verified Bot Confidence: Medium Verified: Yes robots.txt: No

User-Agent Pattern

Google
Chrome-Lighthouse

Robots.txt Snippet

Copy-ready 
User-agent: Chrome-Lighthouse Disallow: /

Handling Guidance

Depends

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

Search indexing, content discovery, rendering, or search-result freshness checks.

Record Details

Structured data
Operator
Google
Family
Google
Type
Search
Purpose
Indexing
Identity type
Verified Bot
Confidence
Medium
Last verified
2026-04-01
Last checked
2026-04-30
Source type
Verified Directory
Spoofing risk
User-agent strings can be spoofed. For allow-listing or low-friction rules, pair the published identifier with operator documentation or cryptographic verification when available.

Notes

Chrome-Lighthouse is listed in the Botcrawl directory as a search crawler from Google. The primary identifier for log review is Chrome-Lighthouse.

Identification

  • User-agent pattern: Chrome-Lighthouse
  • Family: Google
  • Type: Search
  • Kind: Crawler

Common use

Search indexing, content discovery, rendering, or search-result freshness checks.

Verification and handling

Confirm the user-agent against server logs and use published operator documentation, IP ranges, reverse DNS, or other trust signals when available.

Directory guidance marks the risk level as Neutral and the blocking decision as Depends. Do not rely on the user-agent string alone because user-agent strings can be copied or spoofed.

Robots.txt handling: No.

Evidence and Source

  • Validate the identifying user-agent or signature against the operator documentation before creating hard allow rules.
  • Search indexing, content discovery, rendering, or search-result freshness checks.
  • User-agent strings can be spoofed. For allow-listing or low-friction rules, pair the published identifier with operator documentation or cryptographic verification when available.

https://developers.google.com/web/tools/lighthouse

Same family: Google

ProjectShield-UrlCheck Safe

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ProjectShield Url Check is a security scanner from Google used for security checks, malware review, or abuse prevention.

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Verified robots.txt: No Block: No Verified Bot
GoogleOther Neutral

GoogleOther

Generic crawler that may be used by various product teams for fetching publicly accessible content from sites. For example, it may be used for one-off crawls for internal research and.

Google Google Search Indexing
Verified robots.txt: Yes Block: Depends Official Documented
GoogleOther-Image Neutral

GoogleOther-Image

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Verified robots.txt: Yes Block: Depends Official Documented
GoogleMessages Safe

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Verified robots.txt: No Block: Depends Official Documented

Same operator: Google

GoogleOther-Video Neutral

GoogleOther-Video

GoogleOther-Video is an AI crawler from Google used for AI-related crawling, retrieval, search, or assistant activity.

Google Google Ai Ai Training
Verified robots.txt: Yes Block: Depends Official Documented
Google-CloudVertexBot Safe

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Google Google Ai Ai Crawl
Verified robots.txt: Yes Block: Depends Official Documented
Google-CWS Neutral

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Google-CWS is a search crawler from Google used for search indexing, page discovery, or content rendering.

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Verified robots.txt: No Block: Depends Official Documented
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Google Google Search Indexing
Verified robots.txt: Yes Block: Depends Verified Bot

Similar purpose: Indexing

YandexVideoParser Safe

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Verified robots.txt: No Block: Depends Official Documented
YandexWebmaster Safe

YandexWebmaster

YandexWebmaster is a search crawler from Yandex used for search indexing, page discovery, or content rendering.

Yandex Yandex Search Indexing
Verified robots.txt: Yes Block: Depends Official Documented
YandexVertis Safe

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YandexVertis is a search crawler from Yandex used for search indexing, page discovery, or content rendering.

Yandex Yandex Search Indexing
Verified robots.txt: Yes Block: Depends Official Documented
YandexVerticals Safe

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