How this test works
Samples Gamepad API axes for three seconds while the sticks are untouched.
EstimatedPrecision label
P0 browser diagnostic
Stick Drift Test
Sample resting analog-stick position and quantify center offset and noise.
EstimatedBrowser-nativeLocal processing
SD
Interactive test
Stick drift diagnostic
◆Stays on deviceNo raw hardware upload
No controller detected yet
Axis 10.000
Axis 20.000
Axis 30.000
Axis 40.000
Your data flow
Axis samples are calculated and discarded locally.
Read the privacy overview →What this cannot prove
- There is no universal failed-drift threshold.
- OS calibration and browser mapping affect values.
Fix common problems
- Retest on a stable surface without touching the sticks.
- Try OS or vendor calibration.
- Adjust game-specific deadzone conservatively.