crawl4ai

AI Training Crawler Unknown / community maintained robots.txt behaviour unknown

Open-source LLM-friendly web scraping and extraction library

User-Agent

crawl4ai-adapter/1.0

Allow crawl4ai in robots.txt

User-agent: crawl4ai
Allow: /

Block crawl4ai in robots.txt

User-agent: crawl4ai
Disallow: /

Blocking stops your content being used for model training. It does not remove you from AI search results — that's governed by separate search/assistant bots.

Official documentation: https://github.com/unclecode/crawl4ai

Is crawl4ai blocked on your site — even by accident?

Free dual-engine check: robots.txt verdicts for all 222 bots plus live User-Agent probes. Finds WAF blocks your robots.txt doesn't show.