An online casino is an internet-based version of a brick-and-mortar casino that allows players to wager real money on a variety of casino games. They usually feature slots, video poker, roulette, blackjack, and more. Some online casinos also offer live dealer gaming. In addition to the games themselves, online casinos offer a wide range of promotions and bonuses. They may also host tournaments and other special events.

Creating and operating an online casino requires significant investments. Startup costs include licensing fees, security infrastructure, server instances, and marketing campaigns. Then there are ongoing costs, such as audits and player support. Finally, there are staffing and operational expenses.

To attract new users, online casinos must offer a wide selection of high-quality games. They also need to ensure secure and reliable payment options. This is a key factor in building user trust and loyalty. In addition, online casinos can use paid advertising on platforms like Google Ads to drive traffic. To maximize the return on investment, they should track ad campaigns with a tool such as Keitaro.

To deposit funds into an online casino, simply select the cashier tab from the website or mobile app. Choose a deposit method, enter the amount you wish to deposit, and then follow the instructions to verify your information or enter a password (if applicable). Once verified, your funds will appear in your account. You can then use them to play games on the casino’s website or mobile apps.