AI search · Anthropic
Claude-SearchBot
Indexes pages so Claude's web search can return and cite them. Blocking it removes your site from Claude search results without affecting training, which is ClaudeBot's job.
- Operator
- Anthropic
- Purpose
- AI search indexers
- Feeds
- Claude Search
- robots.txt token
Claude-SearchBot- Honours robots.txt
- Honours robots.txt
- Documentation
- support.anthropic.com
What it looks like in server logs
A representative user-agent string. Version numbers change; the Claude-SearchBot token does not. Paste your own log line into the user-agent checker to confirm a match.
Mozilla/5.0 (compatible; Claude-SearchBot/1.0; +https://www.anthropic.com)How to block Claude-SearchBot
Add this to the robots.txt at the root of your domain. Robots.txt is advisory: it works only on crawlers that choose to read it. This one is honours robots.txt according to its operator.
User-agent: Claude-SearchBot
Disallow: /
To block every ai search indexer at once, or to block training while keeping AI search citations, use the robots.txt generator.
How to allow Claude-SearchBot while blocking others
A more specific User-agent group wins over a wildcard. Place this above any User-agent: * block that disallows paths, and Claude-SearchBot keeps full access.
User-agent: Claude-SearchBot
Allow: /
How to verify a genuine hit
The user-agent string is self-asserted: anyone can send it from a laptop, and scrapers routinely impersonate well-known crawlers to slip past filters aimed at unknown ones.
No published IP ranges; verify by behaviour only.