Anthropic

ClaudeBotcrawlers from Anthropic

Crawler used to train Claude models.

ClaudeBot is Anthropic's primary crawler for gathering training data for the Claude model family. It honors robots.txt and supports the new Content-Signals directives Anthropic and Cloudflare pushed in 2025. Allow it to influence what Claude knows about your domain. Anthropic also operates Claude-Web / Claude-User for on-demand fetches at chat time.

Vendor
Anthropic
Category
Crawlers (training & indexing)
User-Agent
ClaudeBot
Documentation

robots.txt snippets

Allow
User-agent: ClaudeBot
Allow: /
Disallow
User-agent: ClaudeBot
Disallow: /

FAQ

What is ClaudeBot?
ClaudeBot is Anthropic's primary crawler for gathering training data for the Claude model family. It honors robots.txt and supports the new Content-Signals directives Anthropic and Cloudflare pushed in 2025. Allow it to influence what Claude knows about your domain. Anthropic also operates Claude-Web / Claude-User for on-demand fetches at chat time.
What is the user-agent string for ClaudeBot?
ClaudeBot identifies itself with the user-agent token "ClaudeBot". You can match it in robots.txt with "User-Agent: ClaudeBot" and route nginx / log-analyzer rules against that token.
How do I allow ClaudeBot in robots.txt?
Add the following block to your /robots.txt — this explicitly grants ClaudeBot access: User-agent: ClaudeBot Allow: /
How do I block ClaudeBot in robots.txt?
Add the following block to your /robots.txt — note that well-behaved bots honor this, but not every crawler does: User-agent: ClaudeBot Disallow: /
How can I check whether my site is ready for ClaudeBot?
Run a free check at https://agentics.page — it audits whether your robots.txt allows the right bots, whether you publish llms.txt and JSON-LD structured data, whether your content is server-rendered, and whether ClaudeBot can actually consume your site.

Is your domain ready for ClaudeBot?

agentics checks whether your robots.txt allows the right bots, your llms.txt is in shape, your JSON-LD and SSR content are visible, and whether ClaudeBot can actually use your domain.

Run free check →

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