GoogleOther crawler

GoogleOther

GoogleOther is a Google generic crawler used by product teams for publicly accessible content fetches outside core Googlebot.

Not tied to answers in an AI assistant.

Get the robots.txt rule Google documentation

Is GoogleOther allowed on your site?5 Google bots

Google-ExtendedTraining
Not checked
GooglebotSearch
Not checked
Google-AgentUser fetch
Not checked
Google-GeminiNotebookUser fetch
Not checked
GoogleOtherOther
Not checked

Reads your live robots.txt and applies the same rules these crawlers use. Nothing is stored.

robots.txt token: GoogleOther
Follows robots.txt: Yes, documented
How to verify it: Published IP ranges and reverse DNS
Seen on: Not measured
Last checked: 11 June 2026

Should you block GoogleOther?

Blocking it may affect Google product-specific crawling but is separate from primary Search indexing policy.

What blocking each Google bot does
Google bot	Job	If you block it
Google-Extended	Control token	Disallowing it limits future Gemini training and grounding uses covered by the token. Google says it does not affect Search inclusion or ranking.
Googlebot	Search	Blocking Googlebot can remove pages from Google Search and eligibility for Google AI features that depend on Search indexing.
Google-Agent	User fetch	Blocking it can prevent a Google agent from retrieving a page while completing a user-directed task. It is separate from Google Search crawling.
Google-GeminiNotebook	User fetch	A hit usually means a person added your page as a source, not that Google is crawling your site broadly.
Google-CloudVertexBot	Other	A hit usually relates to a configured Vertex AI workflow rather than broad public search crawling.
GoogleOtherThis page	Other	Blocking it may affect Google product-specific crawling but is separate from primary Search indexing policy.
GoogleOther-Image	Other	Blocking it can limit image-oriented Google product crawls without targeting regular Googlebot directly.
GoogleOther-Video	Other	Blocking it can limit video-oriented Google product crawls without targeting regular Googlebot directly.

robots.txt

User-agent: GoogleOther
Disallow: /

Asks GoogleOther not to crawl any page. Other Google bots are unaffected. Add it to the robots.txt file at the root of your site, above any wider rules.

Ignored robots.txt?

GoogleOther access decides whether Google can fetch your pages. Whether those pages get used in generated answers is a separate question, so track your presence in Google's AI results rather than treating crawl volume as visibility.

Also seen under Google’s name, but not in its current documentation: GoogleAgent-Mariner, Gemini-Deep-Research, Google-NotebookLM, Google-Gemini-CLI, Google-Firebase. Rules naming them control no documented Google crawler.

Spot it in your logs.

Match the name, then check where the request came from. Anyone can copy a user-agent.

User-agentsource

GoogleOther

Version numbers change. Match the highlighted name, not the whole string.

1
Match the name
Search your server or CDN log for GoogleOther, case-insensitive. A match is a clue, not proof.
2
Check the published IP ranges and reverse DNS
Google also documents reverse DNS: a genuine common crawler’s hostname ends in googlebot.com or google.com and resolves back to the same address. developers.google.com/static/search/apis/ipranges/googlebot.json

Is this really GoogleOther?

Addresses and reverse DNS

Paste an address that claims to be GoogleOther. It is checked against Google’s published list and its reverse DNS. Nothing is stored.

Check any crawler’s address

Serve the content in HTML

The cited operator material does not verify JavaScript rendering. Serve useful HTML before client-side JavaScript where possible.

Questions, answered.

What is GoogleOther?

GoogleOther is a Google generic crawler used by product teams for publicly accessible content fetches outside core Googlebot.

Does blocking GoogleOther stop Gemini from mentioning my site?

What is the GoogleOther user-agent string?

How do I block GoogleOther in robots.txt?

What is the difference between GoogleOther, Google-Extended and Googlebot?

GoogleOther is for other uses, separate from training and search. Google-Extended is for training: it collects pages that may be used to build models. Googlebot is for search: it indexes pages so answers can find and cite them. Google-Agent is a user fetch: it reads a page when a person asks about it. Google-GeminiNotebook is a user fetch: it reads a page when a person asks about it. Google-CloudVertexBot is for other uses, separate from training and search. GoogleOther-Image is for other uses, separate from training and search. GoogleOther-Video is for other uses, separate from training and search. Each has its own robots.txt token, so a rule for one does not cover the others.

How do I know a request really came from GoogleOther?

Does GoogleOther run JavaScript?

Sources.

Officially documented. Operator facts and Trakkr’s measurements keep separate dates.

[1]
Google crawler documentation
Officially documented · checked 11 June 2026
developers.google.com/crawling/docs/crawlers-fetchers/overview-google-crawlers

First verified 11 June 2026. Last source check 11 June 2026.

Changes

14 July 2026Google refreshed its crawler referenceThe current reference separates common crawlers, special-case crawlers, user-triggered fetchers, and product control tokens.

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GoogleOther

Should you block GoogleOther?

Spot it in your logs.

Match the name