How this test works
Samples requestAnimationFrame timestamps and uses the median frame interval.
EstimatedPrecision label
P0 browser diagnostic
Refresh Rate Test
Estimate the refresh cadence currently rendered by your browser.
EstimatedBrowser-nativeLocal processing
HZ
Interactive test
Refresh rate diagnostic
◆Stays on deviceNo raw hardware upload
—Hz
Browser rendering estimate
Median estimate —Timing variation —Tab visibility —
Your data flow
Timing samples stay on this device.
Read the privacy overview →What this cannot prove
- Variable refresh, workload and power saving affect timing.
- This is not hardware timing certification.
Fix common problems
- Keep this tab visible during the test.
- Check OS display refresh-rate settings.
- Disable power saving or remote desktop and retry.