CCBot

Common Crawl · Collects for training

CCBot builds Common Crawl's open repository of web crawl data, which anyone can access and analyse. Common Crawl warns that other crawlers pretend to be CCBot; on IPv4, the real one's reverse DNS ends in crawl.commoncrawl.org.

Fact sheet

Operator
Common Crawl
What it is for
It collects text that is used to train AI models.
Assistant it feeds
Does not feed any assistant's answers
Counts towards the Parsigo score
No. What it collects is used to train models, and training does not decide whether you are cited.
Official documentation
commoncrawl.org/ccbot
Official IP ranges
JSON list

If you block it

You ask it to stop collecting your content. It changes neither whether you are cited nor your score.

Allow or block

A group of its own makes CCBot ignore the “User-agent: *” rules. If you have Disallow lines there that should still apply to it, repeat them inside its group. To allow it, writing nothing is usually enough.

Allow

User-agent: CCBot
Allow: /

Block

User-agent: CCBot
Disallow: /

Test it on your site

We run the diagnostic on your site and show you whether CCBot can get in, with the robots.txt line that decides it. Free, no sign-up.

Worth knowing

Common Crawl feeds a good part of the industry's training corpora.