Mouse Scroll Test
Check upward and downward wheel events received by your browser.
Mouse Scroll Test
Check upward and downward wheel events received by your browser.
Scroll Test Area
Scroll the mouse wheel within the test area to perform the test
Scroll Up
Scroll Down
Scroll Statistics
Up Scrolls
0
Down Scrolls
0
Total Scrolls
0
Mean event interval0.0 ms
How to test
Move the pointer into the test area and scroll slowly in one direction, then the other. Reset to compare another run.
What the result means
Counters represent browser wheel events, not physical wheel notches. A touchpad may also send wheel events. The displayed interval is time between events, not hardware latency.
What to do next
Watch for unexpected reversals while scrolling in one direction. Compare system scroll settings and another browser; this observation alone does not identify a broken encoder.