The highest rating a sportsbook can achieve is an A+ from SBR. A sports betting site must excel across a wide range of criteria in order to achieve that coveted rating, including security, trustworthiness, prompt payouts, attractive odds, strong coverage of a number of different sports, a user-friendly site, a slick mobile offering, a variety of banking options, and great customer service. Offering a compelling sign-up bonus and loyalty program is another way to impress bettors, but there are some highly rated sites that eschew a bonus system and simply offer sharp, early lines and high limits. An A rating is also an extremely good rating. It is reserved for the elite sportsbooks that have built up a strong reputation for treating customers fairly and paying out on time over a number of years. If you choose to bet with a sportsbook with an A rating from SBR, you will know that you are in good hands. We only recommend sportsbooks that we have carefully vetted, by depositing money, betting on a number of markets, interacting with customer service and making withdrawals. We can wholeheartedly endorse A rated sportsbooks. An A- or a B+ is also a good sportsbook rating. An online sports betting site that falls into one of these categories might not excel across the board, but it will be strong in almost every criteria. You might decide to play with one of these sportsbooks because it offers an attractive sign-up bonus, or it covers a niche sport or a specific type of prop bet that you are interested in. You can rest assured that these sportsbooks are good operators and that they will treat you fairly. They should have the liquidity to cover any winnings, a customer service team that can help with any issues and an attractive site that is a pleasure to use.