URLFind – URL mapping and links cross domains

I'm so confused as to what this actually does and the use case. All I see is the same sentence on the site, no actual breakdown as to what the use is or what it does. Can anyone clarify? Thanks.

Nice idea. My only complaint is that searching only works on domain names, rather than URLs like the name would suggest.

What powers it? Google? Or are they doing their own indexing?

This is really interesting... My security team would use something like this... though would be nice to suggest a pattern a la "inurl" that shows all sites where /about/carousel.php" shows up, for example.

Edit: I see you guys are a security company... makes sense. :-)