First, it is impossible for the dealer to cheat or to make mistakes, so players can relax a little bit. This simple fact has several consequences. Online blackjack games are controlled by computers. Remember that little things like side bets or special payouts also change how the game should be played.
Little variations in rules can cause big changes in basic strategy, so it is important to read the rules thoroughly before playing online.
The rules of online blackjack games can be subtly different from the rules of offline blackjack games – even if the games have the same name. Blackjack at the casinos is different from blackjack online in a lot of important ways, and before playing online it is important to know the difference between play in casino and online, especially if you have experience playing blackjack in Las Vegas or elsewhere.