Collects web content that could contribute to training Anthropic's models.
Source: privacy.claude.comOperator
Anthropic
Job
Model training
Collects pages for training future models. Slower to pay off, and separate from search and citations.
robots.txt
Follows robots.txt
Anthropic says its bots honour standard robots.txt directives, including the non-standard Crawl-delay. Blocking ClaudeBot excludes your future content from training data.
Source: privacy.claude.comClaudeBot
Add one of these groups to the robots.txt at the root of your domain.
A crawler obeys only the most specific group that names it (RFC 9309), so a named group does not inherit the rules under User-agent: *. Repeat any paths you keep private, as the example does with /admin/.
User-agent: ClaudeBot Allow: / Disallow: /admin/
User-agent: ClaudeBot Disallow: /
Read from the robots.txt we serve. We want AI engines to read and cite this site, so every AI crawler is allowed everywhere except the app, the API and the sign-in pages (/dashboard/, /api/, /login, /signup, /sign-in, /sign-up). The file also declares Content-Signal: ai-train=yes, search=yes, ai-input=yes.
User-agent: ClaudeBot Allow: / Disallow: /dashboard/ Disallow: /api/ Disallow: /login Disallow: /signup Disallow: /sign-in Disallow: /sign-up
See the whole file. The same rules repeat in every group, because a crawler that matches a named group ignores the wildcard one.
Anthropic asks you to add the rule on every subdomain you want to opt out, and says blocking by IP address may not work reliably.