Dataset builders
LAIONDownloader is a bot operated by Large-scale Artificial Intelligence Open Network that crawls pages into a dataset that may be reused or shared with third parties. LAIONDownloader is a bot by LAION, a non-profit organization that provides datasets, tools and models to liberate machine learning research. No IP range list or reverse-DNS convention is published, so a request carrying this user agent cannot be proven genuine and a robots.txt rule alone will not stop a forgery.
Request says
"LAIONDownloader"
Checked against
Nothing published
Live check
No operator check exists for LAIONDownloader. This still shows what the address really is.
Reference
| User agent | LAIONDownloaderToken only: match on the substring. |
|---|---|
| Operator | Large-scale Artificial Intelligence Open Network |
| Purpose | AI tools and models for machine learning research. |
| Respects robots.txt | Ignoressource |
| 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 | LAIONDownloader |
| Operator documentation | None published |
LAIONDownloader is a bot by LAION, a non-profit organization that provides datasets, tools and models to liberate machine learning research.
robots.txt
LAIONDownloader is documented as ignoring robots.txt. Enforce a block at your CDN too.
User-agent: LAIONDownloader
Disallow: /User-agent: LAIONDownloader
Allow: /User-agent: LAIONDownloader
Allow: /
Disallow: /account/
Disallow: /checkout/
Disallow: /searchEdit the Disallow paths to match your own URLs.
Blocking LAIONDownloader keeps your pages out of the datasets it builds from future crawls. It does not remove anything collected earlier, and how each operator uses or shares its data varies, so check their policy.
Build a file for every crawlerFAQ
LAIONDownloader is a bot operated by Large-scale Artificial Intelligence Open Network that crawls pages into a dataset that may be reused or shared with third parties. LAIONDownloader is a bot by LAION, a non-profit organization that provides datasets, tools and models to liberate machine learning research. No IP range list or reverse-DNS convention is published, so a request carrying this user agent cannot be proven genuine and a robots.txt rule alone will not stop a forgery.
No. LAIONDownloader is documented as not following robots.txt, so a Disallow line will not stop it. Blocking needs to happen at the edge, by user agent or by source address.
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 LAIONDownloader 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 LAIONDownloader keeps your pages out of the datasets it builds from future crawls. It does not remove anything collected earlier, and how each operator uses or shares its data varies, so check their policy.