Crawler directory
AI answersUser agent + IP range

Anthropic

Claude-User

About this crawler

Claude-User is tracked as a user-triggered fetcher from Anthropic.

Usually means: A person asked an AI assistant a question, and the assistant fetched this URL to answer with fresh context or citations.

User agent

Claude-User

Faurya matches these as user-agent tokens, not full browser strings. Providers may add surrounding version or product text.

IP verification

Verified when user agent and IP range both match

Faurya first matches the crawler user-agent token, then compares the request IP with published ranges from the crawler operator when those ranges exist.

User agent

Request user agent contains Claude-User.

Request IP

Server-side tracking forwards the crawler IP seen by your backend.

Range check

The IP is compared with published CIDR ranges or JSON range endpoints.