jackpot_semnBeen reading this board for a while, so here is what I look at before signing up anywhere. After getting burned once or twice I stopped going by ads alone.
I always start with licensing: find the licence number and look it up, and whether they actually accept players from your country. After that I look at banking: crypto is a plus but not a must, and cashout times should be listed up front.
The welcome offer is where most people get caught. Anything above 40x rollover is a red flag for me, and some games count less towards it. A decent independent write-up with the current terms can be found here [url=https://legendary11.com/blogs/view/66307]Slott[/url] before you deposit anything.
On mobile I mostly use the browser version, and a good site loads fast and does not log you out every five minutes. Ask support one simple question first: if they answer in a couple of minutes that is a good sign.
That is about it. Only play with money you can afford to lose.