You sure that it's actually bitcoincashout.com? instead of bitcoinscashout.com, which is a pretty well documented scam with a lot of people reporting that they've been scammed. You may want to change your Title and the URLs in the OP if that is the case.

But the site design is a huge red flag already, because obviosuly they haven't put much time and effort into designing this site if they are legit. They are offering @ or above market rates as well, which is strange for a business to do, because they have absolutely no profitable business model.

You're right, always do your research before you send funds to any crypto site. There are tons of scams out there, and this is actually one of the more obvious ones. Sorry for your loss, but at least it wasn't that big.