The best online sportsbooks provide excellent customer support, a wide range of betting markets and great bonuses for new customers. They also feature competitive odds on all wagers, including NFL and NBA games. Seasoned bettors know the value of shopping for the most competitive lines and often have multiple accounts at different sportsbooks. This is particularly helpful when placing parlays or other multi-team bets that can be affected by a single loss.

Online sportsbooks can be accessed from desktop or laptop computers, iPhones and iPads in most states where they are legal to do so. Many of the top US sportsbooks have native mobile apps that are easier to use than their online platforms. They make it quick and easy to register, redeem huge welcome bonuses, place bets and cash out winnings on the go.

Most major sportsbooks accept several popular payment methods, such as PayPal, Visa, MasterCard, ACH electronic funds transfers and Sightline. Deposits are usually credited to your player balance within seconds. Some online sportsbooks require verification of identity before allowing you to deposit, while others have minimum deposit amounts and maximum withdrawal limits.

A sportsbook’s odds are one of the most important factors in determining how profitable a bet is. It does little good to have great banking options, great bonuses and great support if the odds aren’t there to back them up. This is why some of the best online sportsbooks have earned a reputation for having consistently attractive lines on all bets, including straight and parlay bets.

In addition to the usual spreads, point spreads and moneyline bets, some online sportsbooks offer unique betting lines that are specific to a sport. These bets are known as proposition (prop) bets and can help you find an edge on certain types of wagers. For example, some NFL props have reduced juice lines that give you a better chance of winning than standard lines. Other props offer insurance offers on individual players or teams, and some have special rules for parlays and other multi-team bets.

Many online sportsbooks target new players with a stream of weekly and recurring promotions. These can include free-to-enter contests with exciting prizes, profit boosts on straight bets and parlays, insurance offers for parlays, bonus bet offers and more. These promotions are designed to encourage new players to keep betting at a particular sportsbook, and they can be very profitable if used correctly.

Choosing the right online sportsbook can be difficult, especially for newcomers. While some sites are reputable and trustworthy, there are unlicensed and illegitimate sportsbooks that are not worth your time. In the long run, these unlicensed books can lead to identity theft and financial mismanagement. To avoid these risks, we recommend choosing one of our highly ranked sportsbooks that have been tested for security and reliability. We’ve reviewed hundreds of legal US sportsbooks and only those with the highest standards have made it onto our list. Be sure to check our review pages regularly for the latest updates and top picks.