Based on how the traffic is routing, the site is physically hosted somewhere in one of the scandinavian countries, and if you read the affiliate program info, whomever wrote it does not have English as a native language.

Of course this doesn't necessarily mean there are problems, but if the company is faking the 2257 docs, it would be very hard for the justice department to nail them, particularly if it originates from one of the countries where porn with 15 and 16 year olds is legal (Denmark, last I checked.)