Start by separating hardware from software.
A stick drift report describes movement observed while the stick should be centered. The most useful interpretation separates steady center offset from random idle noise and brief peaks, then compares those values with the deadzone used by your game.
Average position shows where the stick tends to rest, while maximum and high-percentile movement describe the larger excursions seen during the sample. A single peak may come from vibration or a bumped surface; repeated directional offset is more meaningful.
The suggested deadzone is a starting point, not an automatic prescription. Games use different scales, inner and outer deadzones, response curves, and platform filtering.
Work through the likely causes.
- 01
Confirm the sample was collected hands-off on a stable surface; otherwise retest before interpreting it.
- 02
Check the average X/Y direction to see whether the stick consistently rests away from center.
- 03
Compare high-percentile noise with the maximum to identify steady movement versus rare peaks.
- 04
Review the trace for a repeatable direction, random cluster, or sudden jumps.
- 05
Use the suggested deadzone only as a starting point, then choose the lowest in-game setting that remains stable.
- 06
Retest under the same conditions after calibration, cleaning, or repair and compare saved reports.
Check what the browser can see.
Open the full tester to inspect buttons, sticks, triggers, mapping, range, and neutral noise.
Repeat before you conclude.
A repeatable issue across connections, browsers, and native games is stronger evidence of a controller fault than a one-time browser reading. If the problem appears only in one game, review that game’s controller support, deadzone, remapping, and launcher settings.
What to keep in mind
Retest any sample taken while the controller or surface was moving.
How the browser readings are defined
Our live tools use the standardized browser Gamepad interface and explain its limits in our methodology. Device mappings and proprietary features can still differ by operating system, browser, connection, firmware, and controller mode.
Questions about this issue
What is center offset?
It is the distance between the reported resting position and the ideal zero center. Direction matters because a consistent offset can cause movement when a game uses a smaller deadzone.
Why include percentiles instead of only the maximum?
A maximum can be dominated by one bump. A high percentile summarizes the larger values seen regularly during the sample and provides context for isolated peaks.
Why does the game not drift even when the test moves?
The game's inner deadzone or filtering may already ignore that amount of movement. Different games can behave differently with the same controller.