I've been using that website during my ptc days but I don't use them anymore. Because when I tried to search for a legit company, it basically said that it was scam. I forgot that exact company that I search but sometimes they will just label a random small company as a scam.
Don't depend mostly with scamadviser it's better to do this
I've found that Google is the best tool for scam detection.
It will take few minutes but it's for you and everyone's sake.