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by weird-eye-issue 1350 days ago
BuiltWith has gotten quite good. I tested it on my site and it even correctly detected I use Shutterstock for stock images. We don't credit Shutterstock anywhere (already pay them like $300/mo) so it must actually analyze the images themselves to make this determination
1 comments

Filenames maybe
Nope my VA is trained to change all filenames to something description such as "dog-playing-with-leash.jpg"
Or perhaps it uses file hashes to determine if certain images are similar.