Wikipedia has some editors with some funky practices. They will not include certain entries because they aren't 'famous', as in they are only self referential. It was a big stink with webcomics having their wiki pages deleted because the editors thought they weren't famous enough.

Things like websites often fall to that same editors broom. Unless you are referenced by some other mainstream source (like a newspaper or magazine) merely having a reach in the tens of thousands on the internet is not enough.