Online slots are generally considered fair when operated by reputable casinos that are licensed and regulated. These casinos use Random Number Generators (RNGs) to ensure that game outcomes are truly random and not manipulated. The fairness of online slots is often verified by independent testing agencies that audit games for compliance with fairness standards. While the majority of licensed online casinos maintain integrity, players should always choose well-established platforms to minimize risks and ensure a fair gaming experience. It's important to understand that while the games are fair, outcomes are unpredictable, and players should gamble responsibly.