Refresh Rate Test
Estimate the display refresh rate from browser animation timing. Results are approximate.
Estimate active refresh timing from browser animation frames.
- The browser samples about 300 animation frames (a few seconds). Keep this tab visible.
What this result means
Display Checkup records visual observations and browser estimates. It cannot certify hardware or decide whether a product must be returned. Compare anything concerning with the seller’s policy.
Related tests
Checks that usually pair well with this one.
Make it a full inspection
Run this test as part of a guided inspection and finish with a downloadable PDF report.
Frequently asked questions
Know the limits before you interpret a result.
Is this a hardware diagnostic?
No. Browser measurements are labeled as reported or estimated, and visual findings remain your own observation.
Does Display Checkup upload my screen data?
No. The tests and inspection record run in your browser. The report is generated locally.
Can a browser measure my exact monitor Hz?
It can estimate animation timing, but it cannot replace a hardware instrument or guarantee the panel’s advertised mode.