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AI crawler

What is Claude-SearchBot?

Claude-SearchBot is Anthropic's crawler that indexes pages to improve the quality of Claude's search results.

AI search and answersFollows robots.txtIP list
Operator
Anthropic
Purpose
AI search and answers. Indexes pages so AI answers can cite and link to you. Blocking it can remove you from those answers.
robots.txt token
Claude-SearchBot
Sample user agent
Anthropic does not publish its user agent strings. Match on the token, not a full string.User agents change with versions. Match on the token, not the full string.
Follows robots.txt
Yes, according to Anthropic.
How to verify
Check the IP against Anthropic's published list.Anthropic publishes one list shared by all its bots.
Sources
Anthropic documentationAnthropic IP list
Last reviewed

Allow or block Claude-SearchBot

Block Claude-SearchBot
User-agent: Claude-SearchBot
Disallow: /

Asks Claude-SearchBot not to crawl any page. Well-behaved crawlers stop; it does not stop anyone who ignores robots.txt.

Allow Claude-SearchBot
User-agent: Claude-SearchBot
Allow: /

Lets Claude-SearchBot crawl everything. You only need this if a broader rule would otherwise block it.

Should you block it?

Keep Claude-SearchBot allowed if you want to appear, with a link, in Anthropic's answers. Blocking it is the fastest way to disappear from them.

Write a full policy with the AI Crawler Policy Generator

How to verify a Claude-SearchBot request

  1. Find the IP address of the request in your server or CDN logs.
  2. Get Anthropic's published list (Anthropic IP list).
  3. Check whether the IP falls inside one of the ranges. If it doesn't, the request is not from Claude-SearchBot, whatever its user agent says.

Anthropic publishes one list shared by all its bots.

Test Claude-SearchBot requests

Questions about Claude-SearchBot

Is Claude-SearchBot safe to allow?

Claude-SearchBot reads public pages; it does not log in or submit forms. Whether to allow it depends on whether you want Anthropic's product to use your pages.

How do I know a request is really Claude-SearchBot?

Check the request against what Anthropic publishes: Check the IP against Anthropic's published list. The user agent alone proves nothing.

How often does Claude-SearchBot visit?

It depends on your site; Anthropic doesn't publish a schedule. Referscope shows the real visits.

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