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ClaudeBot

by Anthropic

AI training AI UA + IP range

Collects pages in bulk to train a model, unconnected to any individual user's question.

Anthropic crawler collecting public content that may be used to improve Claude.

What it usually means

Anthropic crawled this page as potential training data, unconnected to any individual user's question.

How to identify it

User-Agent tokens

claudebot

robots.txt stanza

User-agent: ClaudeBot

Free tools

Verify a ClaudeBot request Check if your site allows ClaudeBot

How it's verified

Published IP-range endpoints

https://claude.com/crawling/bots.json

Currently loaded ranges (sample) Refreshed Sep 4, 2026

216.73.216.0/2234.162.230.222/3234.162.244.71/3234.162.191.81/3234.150.241.79/3234.85.172.162/3235.245.175.129/3234.182.222.37/3234.186.108.163/3235.245.89.239/32

1 IP source configured

Anthropic's page for ClaudeBot

Sources

More from Anthropic

Claude-SearchBot

Anthropic crawler that discovers and refreshes content for Claude search.

User-triggered fetches when Claude opens a page to answer a person.

Similar bots

AI2Bot is an AI-related crawler operated by Allen AI.

AliyunBot is an AI-related crawler operated by Alibaba.

Applebot-Extended

Robots token controlling whether Apple may use crawled content for Apple Intelligence training.

ByteDance crawler collecting public content used to train its AI models.

See if ClaudeBot has visited your site

Kitbase verifies and tracks bot and AI crawler traffic separately from human visitors, so you know exactly who's hitting your site.

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