cpstest
Check your click per second with this amazing website CPSTEST.ORG
.... The score is shown with CPS.
It is just the frequency of clicks to a time unit; in this situation, seconds. It means you increase your frequency of clicks tend to increase your score. While the game is set to default time for 5 seconds, players can switch to other time varieties from the menu on the right sidebar of the page. It includes mainly - clicks per 10 seconds, clicks per 15 seconds, clicks per 30 seconds, clicks per 60 seconds (1 minute), and the giant being click per 100 seconds.