What to do
Move the browser to the screen you want to check, start the sample, and leave the tab visible until it finishes.
Refresh Rate Test
Estimate display refresh rate and frame pacing through browser animation timing.
Idle--Hz Estimated
Frame Jitter—
Samples0
ProgressReady
ObservationNot measured
Local history
Save a result to keep it in this browser. History holds your five most recent saved results for this test.
No saved results yet.
How to use this test
What to look for
Compare the estimated cadence with the display setting. Frame interval variation can also reflect browser load or power settings.
Patterns provide visual references for your own inspection. Refresh estimates come from animation callbacks, not direct panel telemetry. Lighting, display processing, viewing angle, and browser behavior affect results.