What is Claude-Code? AI crawler guide
Claude-Code is a crawler or fetcher associated with Anthropic. See source-graded user-agent, robots.txt, verification, and observation guidance.
What is Claude-Code?
Claude-Code is a reported crawler or fetcher string associated with Anthropic, but current operator evidence is incomplete. Claude Code related agent token seen in crawler/user-agent lists.
Evidence status
| Field | Value |
|---|---|
| Evidence | Reported, not operator verified |
| Lifecycle | Status uncertain |
| Purpose | interaction |
| robots.txt posture | unverified |
| Source checked | 2026-06-11 |
Reported user-agent
Claude-Code
Claude-Code fetches pages for a developer tool, so its visits rarely map to buyer behavior. For the demand side, see how much human traffic AI platforms actually send you.
robots.txt allow example
User-agent: Claude-Code Allow: /
robots.txt block example
User-agent: Claude-Code Disallow: /
What the rule can and cannot do
Robots.txt expresses an access policy to compliant automated crawlers. It does not authenticate the sender, remove content already collected, or guarantee that a model will use or not use content.
How to verify a request
- Match the complete documented user-agent where one exists. A match is only a clue.
- Look for operator-published IP ranges, reverse DNS, or signed-request guidance. None is attached to this record.
- Keep the observed request, operator documentation, and any inference as separate fields.
JavaScript behavior
The cited operator material does not verify JavaScript rendering. Serve useful HTML before client-side JavaScript where possible.
Related bots
- Google-Gemini-CLI: Also tracked as a live fetcher.
- Claude-Web: Another Anthropic live fetcher to compare.
- Google-Agent: Also tracked as a live fetcher.
- Meta-ExternalFetcher: Also tracked as a live fetcher.
- cohere-ai: Also tracked as a live fetcher.
- Google-GeminiNotebook: Also tracked as a live fetcher.
- GoogleAgent-Mariner: Also tracked as a live fetcher.
- NovaAct: Also tracked as a live fetcher.
- ChatGPT Agent: Also tracked as a live fetcher.
- Anthropic: Claude-Code connects this operator term to its crawler behavior.
- Claude 3.5 Sonnet: Claude-Code gives crawler context for Claude 3.5 Sonnet.
Frequently Asked Questions
What is Claude-Code?
Claude-Code is a reported, not operator verified crawler or fetcher record associated with Anthropic.
What user-agent does Claude-Code use?
Claude-Code. Check the evidence status before attributing a matching request.
Can Claude-Code be blocked in robots.txt?
The record identifies Claude-Code as the token to review. Robots.txt is a request policy, not proof of model use or non-use.
How can I verify a Claude-Code request?
Treat the user-agent as a clue and look for operator-published IP, reverse-DNS, or signature guidance.
Data & Sources
- Claude-Code source reference - Source used to verify Claude-Code.