Online casinos are digital gambling platforms that allow players to wager real money on casino games like slots, blackjack, roulette and poker. They also often offer loyalty programs and bonus opportunities for existing players. In addition to offering a wide range of games, many online casinos also offer live dealer table action. Players can deposit and withdraw funds via a number of banking options, including credit and debit cards, e-wallets and cryptocurrencies like Bitcoin.

When choosing an online casino, it is important to look for one that is licensed by a reputable gambling authority. This way, you can be confident that the casino has passed a series of tests and is following strict regulatory guidelines. Typically, you can find the license information at the bottom of the casino’s website or on its “About Us” page.

Some online casinos are designed for mobile play, offering optimized browser-based instant play or dedicated apps for iOS and Android devices. Other sites are built with desktop PCs in mind, and require a stable internet connection to function properly. Many of the best online casinos have a wide variety of games, quick payouts and excellent customer support.

Aside from standard online casino games, some websites also offer sports betting. This includes Over/Under betting on the total points scored by both teams, prop bets on specific events during a game and futures bets on outcomes decided in advance, such as who will win the next season’s championship.