Online waiting rooms are designed to stop websites and applications from crashing when they reach their capacity to handle traffic.

When excessive traffic is detected, to stop the website from crashing, users are instead directed to a virtual waiting room and placed in a queue. A virtual waiting room is a static website page that displays the user's place in the queue in real-time. When it is the user's turn to access the site, they will then be able to enter the site and complete their transaction.