Tests
Refresh Rate Test
This measurement runs automatically while this tab stays visible for five seconds. Inspect the estimated refresh rate, then open technical details for timing stability and delayed frames.
What this test checks
How to use this test
This measurement runs automatically while this tab stays visible for five seconds. Inspect the estimated refresh rate, then open technical details for timing stability and delayed frames.
What the results mean
A stable median reflects the cadence available to this browser; delayed intervals show uneven scheduling.
Troubleshooting
Keep this tab visible, close demanding apps and repeat on the same display.
Browser limitation
Animation-frame timing estimates browser presentation cadence, not guaranteed panel refresh or hardware frame skipping. Power saving, variable refresh, workload and throttling affect it. Repeat in a visible, idle tab.