Well you can always look wow gold through their domain age & registrant information. Popular domiain regstrars allows you to check the ownership of the domain and how long it has been hosted for. You can find whether the domain is registered to an individual or to a business along with their length of operations. You can also find their wow gold older versions of the site to see if they have done anything fishy. Archive.org is one of the popular sites that allows you to see snapshots of the websites in the past.