No, it's a fake website run by a rogue affiliate, not the actual Slotsville casino site.
Due to their rogue practices, they have tarnished Deckmedia by associating the links on their fake Slotsville page with Miami Club casino, which is why it loads in response to any click on this fake slotsville site.
This same affiliate promotes Cirrus casino UK, part of the Virtual stable, so it is clear they don't care about the wellbeing of players, nor indeed operators.
This affiliate seems to list a wide variety of casinos, so no doubt also has an affiliate account with Deckmedia as well as one with the Rushmore group and Virtual group.