ClaudeBot
Listed onlyAnthropic's web crawler collecting publicly available web data for training Claude models. Anthropic does not publish crawler IP ranges or rDNS.
Operated by Anthropic · Official documentation
User agents
Patterns this directory matches, with real observed strings.
- ClaudeBot/\d
- Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
How to verify
No verification recipe published by the operator.
Good Bot Practices scorecard
- Identifies honestly
Stable UA token documented (1 pattern)
- Verifiable
Operator publishes no verification path
- Respects robots.txt
Honors robots.txt (token: ClaudeBot)
- Behaves
Crawl-rate behavior is operator-declared; not machine-verifiable from this dataset
- Reachable operator
Operator and documentation published
Measured against the Good Bot Practices.