How Do You Know if an Online Casino is Legit?

I consider myself pretty savvy, and usually, my common sense kicks in when a site seems a bit off. You know that feeling when you land on a site, and something about it just doesn’t sit right? But still, I’d love to know if there are any foolproof ways to spot a legit online casino. Sometimes, these sites look so convincing that it’s hard to tell if they’re trustworthy!

If any of you have a reliable checklist or specific things to look for, I'd be super grateful! I’ve heard about checking for licenses, but is there anything else that really makes you feel confident a site is safe to play on?