Goal-Line Technology is a system used in sports, particularly in football (soccer), to determine whether the ball has completely crossed the goal line. This technology helps referees make accurate decisions about goals, reducing human error during critical moments of a match. The system typically uses cameras or sensors placed around the field to track the ball's position. When a goal is scored, the technology sends an immediate signal to the referee's watch, confirming whether the goal is valid. This innovation enhances the fairness of the game and improves the overall viewing experience for fans.