Guest, Read the rules.
The Rules are simple.
Don't spam. Be nice to the people here.
If you own a betting site you can advertise it in Betting picks or Personal Threads(But to post a link a user should have at least 3 posts)
FIrst look for the green locker by the HTML code. Its indicates that site is safe for you to play, its called SSL certificate, Its the first thing I notice.
Avoid playing not licensed casinos, they might scam you.
Always try to find casino with a good reputation.
If the casino accepts players from your country or contains your favorite games and also is licensed and safe and has the green locker, you can play.
There are a few othe factors but these are the ones I always notice and I also wrote an article about it.
Hope it helps you