CCBot
Fully verifiableCommon Crawl's crawler that builds the freely available Common Crawl web archive, widely reused as AI training data by third parties.
Operated by Common Crawl Foundation · Official documentation
User agents
Patterns this directory matches, with real observed strings.
- regexCCBot/\d
- observedCCBot/2.0 (https://commoncrawl.org/faq/)
How to verify
Fetch the official IP range feed
curl -s https://index.commoncrawl.org/ccbot.json Reverse-DNS check a client IP
dig -x <client-ip> +short # expect a hostname matching *.crawl.commoncrawl.org Reverse-DNS suffixes: *.crawl.commoncrawl.org
IP ranges (6)
Refreshed daily from the operator's feed. Also available as /data/ips/ccbot.ips and /data/bots/ccbot.json.
18.97.14.80/29 18.97.14.88/30 18.97.9.168/29 2600:1f28:365:8000::/56 3.41.188.32/29 98.85.178.216/32
Good Bot Practices scorecard
- Identifies honestly
Stable UA token documented (1 pattern)
- Verifiable
Fully verifiable
- Respects robots.txt
Honors robots.txt (token: CCBot)
- Behaves
Crawl-rate behavior is operator-declared; not machine-verifiable from this dataset
- Reachable operator
Operator and documentation published
Measured against the Good Bot Practices.