Blackjack is clearly a scam. If you use martingale strategy, you will see a clear consistency in when you double the bet, dealer gets blackjack. Odds are just impossible. I play with quite a bit of money and played on several different sites. There is no way to really determine how legitimate these things are and if you ask them what is the verification process, they don’t really have any answers. Betonline.ag is probably the worst I’ve visited, atleast another unknown site will let you view the seed. Still doesn’t tell you much in the original breakdown of fair odds but it’s just bad. Vegas you probably have 42%. Online they put you at like 30% win rate or less. It’s also got something where it identifies the bet. There is a youtube video from an ex-employee of these companies and they tell you all about the algorithm and how it operates based on your betting style. Scum of the earth unfortunately.