Training crawlers
ICC-Crawler is a bot operated by NICT that collects pages used to train AI models. Use the collected data for artificial intelligence technologies; provide data to third parties, including commercial companies; those companies can use the data for their own business. It is documented as honouring robots.txt, but no IP range list or reverse-DNS convention is published, so a request carrying this user agent cannot be proven genuine.
Request says
"ICC-Crawler"
Checked against
Nothing published
Live check
No operator check exists for ICC-Crawler. This still shows what the address really is.
Reference
| User agent | ICC-CrawlerToken only: match on the substring. |
|---|---|
| Operator | NICT |
| Purpose | Scrapes data to train and support AI technologies. |
| Respects robots.txt | Honours |
| Verification method | Claim onlyNone published, user agent only No IP range file and no reverse-DNS convention have been published for this agent. The user-agent string is the only signal, and any client can send it, so treat a match as a claim rather than proof. |
| Crawl pattern | Not published |
| Robots.txt tokens | ICC-Crawler |
| Operator documentation | None published |
Use the collected data for artificial intelligence technologies; provide data to third parties, including commercial companies; those companies can use the data for their own business.
robots.txt
Paste one at the root of your domain. Rules are per token.
User-agent: ICC-Crawler
Disallow: /User-agent: ICC-Crawler
Allow: /User-agent: ICC-Crawler
Allow: /
Disallow: /account/
Disallow: /checkout/
Disallow: /searchEdit the Disallow paths to match your own URLs.
Blocking ICC-Crawler keeps your pages out of the next training run. It does not remove anything already collected, and it has no effect on how the site ranks in ordinary search.
Build a file for every crawlerFAQ
ICC-Crawler is a bot operated by NICT that collects pages used to train AI models. Use the collected data for artificial intelligence technologies; provide data to third parties, including commercial companies; those companies can use the data for their own business. It is documented as honouring robots.txt, but no IP range list or reverse-DNS convention is published, so a request carrying this user agent cannot be proven genuine.
Yes. The operator documents that ICC-Crawler reads robots.txt and follows Disallow rules for its own token. Rules take effect on the next fetch of the file, which can be hours or days after you publish them.
You cannot, at least not from the request itself. No IP range file and no reverse-DNS convention have been published for this agent. The user-agent string is the only signal, and any client can send it, so treat a match as a claim rather than proof. Compare the source IP against hosting and datacenter ranges instead, and rate limit anything that behaves like a crawler.
Add the ICC-Crawler token to robots.txt with Disallow: /. If the crawler ignores robots.txt, match the user agent at your CDN or reverse proxy and return 403 there instead.
Blocking ICC-Crawler keeps your pages out of the next training run. It does not remove anything already collected, and it has no effect on how the site ranks in ordinary search.