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Claude-User

Operated by Anthropic · AI answers

Fetches a page when Claude answers a user’s question and cites it.

User-agent token
Claude-User
robots.txt
Documented to honour robots.txt

Allow or block Claude-User

By default every well-behaved crawler is allowed. To block Claude-User specifically, add this to your robots.txt:

User-agent: Claude-User
Disallow: /

Official Anthropic documentation

Did Claude-User read your content?

Quillly detects Claude-User and every other crawler server-side when they fetch your published pages, and shows it in your analytics — so you can see exactly which AI picked up which post, and when.

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