# Claim 43

Anthropic does not document Claude-User as a search or training opt-out token.

entity: Claude-User
field: separate_search_and_training_tokens
value: not_documented
statement: Anthropic does not document Claude-User as a search or training opt-out token.
evidence_url: https://support.claude.com/en/articles/8896518-does-anthropic-crawl-content-from-the-web-and-how-can-site-owners-block-the-crawler
evidence_quote: "Claude-User allows site owners to control which sites can be accessed through these user-initiated requests." source dated 2026-04-07
method: vendor_doc
verified_at: 2026-09-13
confidence: medium
status: current
supersedes: none

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