ask in this forum is the best way to get info about any site or just try with low money

All you have to do is research, just research and read reviews about the gambling website in question and you'll be able to arrive at an intelligent decision. Most of them are foxes in sheep clothing so their real trait will not be evident on the spot so you can rest th m with little amounts first.
I just prefer to read reviews about the gambling sites. And it's good to visit each of their threads, most of the popular gambling sites have their threads also here in forum, you will see people complaining or giving good feed backs about their experience to that casino. You just need to be resourceful.
Although it is not mentioned directly in your post, instead of trying to gamble immediately in a new casino that you find, it is better for other people to try it at first and to see what they think about the new site, we must not forget that creating a casino is difficult and difficulties may arise like technical issues, or problems with withdrawals.