Online casino is the term used to describe a website that accepts wagers on games like blackjack and roulette that are played on your computer or mobile device. This form of gambling is legal in some jurisdictions, but you should check your local laws before making any wagers.

The best online casinos for real money offer a variety of banking options that make it easy to deposit and withdraw funds. They also feature a number of bonuses to help you grow your bankroll and play more games. Some of these bonuses can be as large as a 100% match of your first deposit, which will give you a bigger bankroll to start with.

Besides bonus offers, you should look for a casino’s payout percentages. These numbers are calculated by independent auditing companies to state how often a casino will return your winnings. For example, a casino with a 95% payout rate means you will receive $0.95 for every dollar you place a bet.

The costs of launching a casino online vary depending on the software and other technical requirements. It might cost up to $15,000 for a gaming license, and the web development can run up to $100,000 or more. Adding features, like live dealer and a dedicated customer service team, will also increase the budget. Marketing expenses could be up to $250,000 a year. The cheapest way to advertise is through Google Adwords. However, it can take 2 years or longer before you break even.