An online casino is a gambling website where you can play a variety of games and win real money. These websites are licensed and regulated by one or more regulatory bodies. This is important because it means that the casinos have passed a series of tests to ensure that their site is safe for players. It also helps to protect you from rogue operators.

The best online casinos offer a large selection of games. They work with top game developers to ensure that their sites have a variety of titles that will appeal to all kinds of players. Some of the most popular games include roulette, blackjack, video poker, and slots. Others are more specialized, such as sports betting or specialty games. Some sites even offer live dealer games, which are streamed from a studio or casino.

Another important factor to consider when choosing an online casino is its customer support. The best sites will have email, live chat, and phone support to help you with any questions or problems that you may encounter while playing at the casino. They should also be available around the clock to ensure that you can always get the help you need when you need it.

Another thing to look for when selecting an online casino is its bonuses and promotions. These are important to attract new customers and reward existing ones. The rewards can take many forms, including free spins, matched deposits, cashback, and loyalty rewards.