What is the function of "goal line technology"?

The function of goal line technology is specifically designed to confirm whether the ball has fully crossed the goal line when a goal is scored. This technology utilizes various methods, such as cameras or sensors, to accurately determine if the entire ball has passed the goal line, thereby helping referees make precise decisions regarding goals. This eliminates ambiguity and confusion in situations where the ball might come close to crossing the line, ensuring that scoring events are judged accurately.

The other options pertain to different aspects of the game but do not relate directly to the purpose of goal line technology. Tracking player movements does not impact goal decisions; controlling match timing is a separate function that is managed by referees; and analyzing referee decisions post-match focuses on reviewing the game's officiating rather than live goal verification.