Long time lurker here, thought I would drop what I look at before signing up anywhere. After trying maybe a dozen sites I stopped trusting the big banners.
Licence comes first for me: see which authority is listed in the footer, because some sites quietly block certain regions. Then payments: I want at least one fast e-wallet option, and the withdrawal limits need to be written clearly.
The welcome offer is where most people get caught. Read the wagering and the max bet rule, and live tables often do not count at all. A useful overview with bonus rules, app info and payment methods is here gamblezen casino login so you know what you are signing up for.
Most of my sessions are on mobile, 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.
Hope this helps someone. Treat it as entertainment, not income.