ClaudeBot

Anthropic · AI training crawlers · json

User-agent: ClaudeBot
Disallow: /
robots.txt tokenClaudeBot
User-agent containsClaudeBot
OperatorAnthropic
CategoryAI training crawlers
robots.txtobeys robots.txt (documented)
Verify byno published verification method

What it is

Anthropic's bulk crawler, gathering pages that may be used to train Claude models.

What blocking it costs you

Content excluded from training data for future Claude models. No effect on Claude's ability to fetch a link a user gives it.

Full user-agent string

Mozilla/5.0 (compatible; ClaudeBot/1.0; +claudebot@anthropic.com)

Allow it instead

User-agent: ClaudeBot
Allow: /

Operator documentation: https://support.anthropic.com/en/articles/8896518
Machine copies: json · markdown
Policies that name this crawler: allow-all · block-ai-training · block-all-ai · maximum-ai-visibility