Originally Posted by AdultKing

No. It discovers sites automatically. However crawling the web isn't trivial, so the number of domains currently indexed is relatively small. Lots of sites discovered won't end up in the index. Examples of sites that the search engine will exclude are white label sites, mass embed tube sites (such as sites that just embed videos from the main tubes). Spammy sites are excluded and if a site has too many popups or any kind of sneaky redirects then they won't get indexed either.

There are a lot of crap sites on the adult web and the focus of this search engine is to only index sites of a certain quality. It's not perfect yet, but it's getting better all the time.