Training crawlers

img2dataset

img2dataset is a bot that collects pages used to train AI models. Downloads large sets of images into datasets for LLM training or other purposes. 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.

img2dataset at a glance

Reference data for the img2dataset crawler
User agentimg2dataset

Token only. The operator has not published a full user-agent string, so match on the substring rather than an exact header.

Operatorimg2dataset
PurposeScrapes images for use in LLMs.
Respects robots.txtNot documented
Verification methodNone 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 patternAt the discretion of img2dataset users.
Robots.txt tokensimg2dataset
Operator documentationNone published

Downloads large sets of images into datasets for LLM training or other purposes.

robots.txt

Allow or block img2dataset

Paste one of these into the robots.txt file at the root of your domain. Rules are per token, so a block on one crawler leaves every other bot untouched.

Block img2dataset
User-agent: img2dataset
Disallow: /

Blocks every path for this crawler only.

Allow img2dataset
User-agent: img2dataset
Allow: /

Explicit allow. Useful when a wildcard rule above it would otherwise catch this crawler.

Allow, except the pages you never want quoted
User-agent: img2dataset
Allow: /
Disallow: /account/
Disallow: /checkout/
Disallow: /search

Edit the Disallow paths to match your own account, checkout and search URLs.

What blocking actually costs you

Blocking img2dataset 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.

Block every crawler in the directory at once
Verification

Is that really img2dataset?

A user-agent header is a string the client chooses. Scrapers copy img2dataset precisely because site owners allow it. 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.

Paste the IP address from your access log below. You will see whether it belongs to a hosting provider, a residential proxy pool or a Tor exit, plus the ASN that announces it, which is what tells you whether the claim holds up.

Related crawlers

Agentscan

Identify crawlers automatically instead of by hand

Agentscan checks a request against published crawler ranges, reverse DNS and hosting data, then returns a verdict your edge can act on. One call per request, no range files to keep up to date.

FAQ

img2dataset questions

img2dataset is a bot that collects pages used to train AI models. Downloads large sets of images into datasets for LLM training or other purposes. 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.