Claude-User
AI assistant fetcherThe fetcher Claude uses when a user asks it to open a specific page: reading an article, checking a link, or citing a source during a conversation.
| Operator | Anthropic |
| Type | AI assistant fetcher |
| Respects robots.txt | Yes (documented) |
| Documentation | Official operator documentation |
Claude-User user-agent string
This is how Claude-User identifies itself in your server logs:
Claude-User/1.0; [email protected]How to block Claude-User in robots.txt
Add this to the robots.txt file at the root of your site:
Block Claude-User
User-agent: Claude-User
Disallow: /Explicitly allow Claude-User
User-agent: Claude-User
Allow: /What blocking changes: Claude can no longer read your pages when users ask about them, and your pages stop appearing as cited sources in those conversations.
Want to decide for all AI bots at once? Use the AI robots.txt generator.
Other ai assistant fetchers
- ChatGPT-User (OpenAI)
- Perplexity-User (Perplexity)
- Meta-ExternalFetcher (Meta)
- MistralAI-User (Mistral AI)
- DuckAssistBot (DuckDuckGo)
Is Anthropic sending you visitors?
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