CCBot (Common Crawl)

Official

Common Crawl operates CCBot for the open web corpus. Official IPv4/IPv6 prefixes for CCBot are published in machine-readable JSON at index.commoncrawl.org; use that feed with the documented user-agent for allowlisting.

AhrefsBot SEO crawler API feed and hosting context. Semrush Bot Crawler ranges and SEO bot identity notes. GoogleBot Google crawler feeds and user-triggered traffic split.