CCBot is operated by Common Crawl, a nonprofit that publishes a free, openly licensed archive of the web. It is a training-oriented crawler, not a live search or answer engine, so its data is downloaded in bulk and reused by third parties rather than serving real-time results.
Because Common Crawl feeds so many downstream model training sets, blocking CCBot reduces your presence across a wide range of LLMs that draw on that corpus. It does not remove past snapshots already published, and it has no effect on live AI answer engines that crawl independently.
How to check and control it
To check, look in your robots.txt for a rule targeting this user-agent. To allow or block it:
User-agent: CCBot
Disallow: / # blocks it — remove or set "Allow: /" to permit
For an instant check across your whole site, use SEO AEO Specialist's free AI crawler checker, and see the llms.txt & AI crawler guide.
FAQ
Does blocking CCBot remove me from existing AI models?
No. Blocking CCBot only prevents future Common Crawl snapshots from including your pages. Datasets already published, and any models already trained on them, are unaffected. The change takes effect from the next crawl onward, gradually reducing your presence in newly built training corpora.
Is CCBot a search engine crawler?
No. CCBot builds Common Crawl's open archive, which is downloaded in bulk and reused by researchers and AI trainers. It does not power a live search or answer product, so blocking it affects training-data inclusion rather than any real-time citation or ranking.
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