A casino online is a website that offers real-money gaming and can be accessed from any computer or mobile device with an Internet connection. The games offered are regulated by the state in which they operate and require that players be of legal age to play them (this varies by state). Online casinos also usually mandate encryption and other security measures to protect player privacy and funds.

Aside from providing a variety of games, an online casino should offer a number of promotions and bonuses to lure new and existing players. These can range from no-deposit bonuses to free spins on the newest slot releases. They can also feature leaderboard competitions and tournaments where players can win enticing bonus credits or loyalty points.

In addition, an online casino should have a user-friendly website or mobile app and support a variety of payment methods. Ideally, it will have quick deposit and withdrawal times with limits that suit the needs of its customers. For instance, some casinos may only accept credit cards or debit cards, while others offer instant-play games that do not require any downloads.

Sports betting has exploded across the US since the COVID-19 pandemic, but gambling laws in some states haven’t changed to allow for its expansion into online casinos. In Colorado, for example, online casinos remain illegal and only two state casinos have launched sportsbooks. The state could soon lift its ban on these sites, though, as DraftKings, FanDuel, and BetMGM are preparing to offer sports betting at their online casinos.