This website was made for you to test whether you can spot any difference between delay caused by 64 and 128 tickrate in Counter-Strike.
Below is a clickable black space
You can select multiple options for your tests
Simulated tickrate - tickrate, from which the length of the flash will be calculated (highest delay possible)
Loop:
off = after clicking, the site black area will flash pink once
on = after clicking, the black area will keep switching between black and pink until you click again