lucky_ggmtLong time lurker here, but I figured I would share what I look at before signing up anywhere. After trying maybe a dozen sites I stopped going by ads alone.
Licence comes first for me: find the licence number and look it up, and whether they actually accept players from your country. Then payments: card, e-wallets and bank transfer should all be there, and there should be no weird fees on cashouts.
The welcome offer is where most people get caught. Anything above 40x rollover is a red flag for me, and the bonus usually expires in a week or two. A good recent review that covers all of this is worth a read here [url=https://younetwork.app/read-blog/119740]lottoland eurojackpot[/url] so you know what you are signing up for.
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: slow or scripted answers usually mean trouble later.
Anyway, that is my routine. Only play with money you can afford to lose.