Not all blackjack strategy has to do with what happens on the felt, which is especially the case with the casino where you play. And the online casinos you choose to play blackjack at is a very important factor when it comes to keeping your money safe.

Luckily, the vast majority of online casinos are fine places to play, and you won't have much trouble from them. However, it's still important to take a few precautions in order to avoid those few bad apples out there.

One precaution you can take is to look for the eCOGRA seal at any online casino you're considering. eCOGRA monitors and watches online casinos to make sure that they offer fair gaming, and practice ethical business standards. 

Aside from checking to see if they're eCOGRA certified, another way to find good blackjack casinos is by looking at where they're licensed. Different gambling jurisdictions have varying levels of standards when it comes to licensing online casinos. Some of the top gambling jurisdictions include Malta, the Kahnawake Gaming Commission, Gibraltar, and the United Kingdom. There are other solid gambling jurisdictions other than these, but make sure to do your research on how rigorous the standards by an online casino's licenser are.

Finally, you can simply email a casino yourself to see how quickly they get back to you, and how friendly they are when doing so. If it takes the casino a day or more to respond, this should raise a red flag about their customer support, in addition to the operation as a whole.

By taking steps to ensure that the casino you're playing at is legitimate, you will have a much more fun and safe time playing online blackjack.