What is CCBot?
CCBot is Common Crawl's web crawler that creates an open repository of web data, making crawled content universally accessible for research, analysis, and AI training purposes. You can set up Agent Analytics to see when CCBot visits your website.
Category
| Example User Agent | CCBot/2.0 (https://commoncrawl.org/faq/) |
| Operated By | Common Crawl |
| Source | Official Website |
| Identity |
Verified
Verified Identification
Requests claiming to be this agent can be authenticated using its published verification method. |
| Triggered By | Automated crawl |
| Used for AI Model Training | Yes |
| Affects AI Chat & Search Visibility | Not directly |
| Expected To Follow Robots.txt | Yes |
Why Is CCBot Visiting My Website?
Your content matched the criteria Common Crawl set for a training dataset. CCBot typically discovers pages through external links, sitemaps, and seed lists rather than because someone selected your site individually.
Should I Block CCBot?
Block CCBot if you want more control over whether your work is used for AI training. Allowing it may increase the chance that your brand appears in AI-generated answers, but either choice leaves traditional search rankings unchanged. For context, 25% of the top websites we track currently have robots.txt rules for CCBot.
How Do I Block CCBot Using Robots.txt?
Add this rule to your robots.txt file to block CCBot from accessing your website, or use Automatic Robots.txt to block all AI data scrapers at once. You can customize which pages are blocked by swapping out / for a different path.
User-agent: CCBot # https://knownagents.com/agents/ccbot
Disallow: /Insights for CCBot
As of October 29, 2026, this data reflects agent visits measured across thousands of websites using Agent Analytics, combined with daily scans of the top 1000 websites and their robots.txt files.
Robots.txt Compliance
Country of Origin
Robots.txt Blocked Percentage
Frequently Asked Questions
What Traffic Patterns Should I Expect From CCBot?
CCBot tends to make broad, high-volume sweeps across many pages. Timing is unpredictable: traffic may remain heavy throughout a collection pass, then stop entirely.
Does CCBot Follow Robots.txt Rules?
CCBot is expected to follow robots.txt rules, so a disallow rule is the appropriate first step if you want to block it. Automatic Robots.txt can add and maintain that rule, while Agent Analytics lets you verify whether CCBot respects it.
Is CCBot Used for AI Model Training?
Yes. CCBot collects web content for use in AI training datasets. Blocking it limits future collection but cannot remove content that was collected previously.
Does Blocking CCBot Affect AI Search or Citations?
Not directly. Blocking CCBot limits collection for AI training rather than controlling a live AI search index or citation system.
Does CCBot Access Private Content?
Not through legitimate access. CCBot primarily targets public content, but some training-data scrapers also attempt to collect gated or paywalled pages. If content loads without authentication, assume it can be collected.
How Can I Verify a Request From CCBot?
Agent Analytics tracks visits from CCBot and every other known AI agent, crawler, and scraper, then authenticates each visit using CCBot's published verification method. You can also check your server logs for requests whose user-agent string contains "CCBot". Look for high page counts, short gaps between requests, and deep traversal through linked content. A matching log entry alone is not proof because any bot can claim to be CCBot.