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How a Sportsbook Makes Money

A sportsbook is a gambling establishment that accepts wagers on various sports events. Its goal is to maximize revenue by setting odds that will generate a profit over the long term. In the United States, most sportsbooks are licensed and regulated by state governments. They are also required to implement responsible gambling measures, such as age verification and self-exclusion programs. The leading sportsbooks offer tools that help customers limit their betting activity and prevent problem gambling.

In addition to setting the odds for each event, a sportsbook must figure out how much to charge for its services. This is known as the vig, or vigorish, and it can be one of the largest sources of revenue for a sportsbook. Typically, sportsbooks charge between 100% and 110% of the total amount wagered by customers.

Sportsbooks also have to account for home field advantage and other factors that can influence the outcome of a game. For example, some teams perform better at home than they do away from home, so the sportsbook adjusts the point spread and moneyline odds accordingly.

Another way a sportsbook can increase its profits is by offering signup bonuses and free bets to attract customers. This strategy can help the sportsbook build a solid customer base, and it can also improve affiliate revenue over time. Affiliates should always track which promotions and bonuses are the most popular with their readers, so they can focus their efforts on those that will provide them with the best results.