Display
Browser refresh-rate observation
After Start, estimate Hz from browser frame timing.
Choose a color, inspect the panel, then confirm only what you saw yourself.
Values come from requestAnimationFrame browser observation — not certified panel refresh rate.
Median (Hz, observation): —
Min: — · Max: — · Variation (Hz, observation): —
Samples: 0
Visual confirmation only — not automatic dead-pixel detection or certification.
Details and limits
How to check
Press Start, wait a few seconds, then read the median and variation. Stop ends sampling.
Limits
Focus, power saving, browser limits, and variable refresh affect the value. It may differ from OSD or EDID numbers.
If something feels wrong
If the number looks low, close other tabs, check fullscreen and power settings, then observe again.
FAQ
My monitor is 144 Hz but this shows about 60.
Browser observation can sit below panel settings. It is not a proof of the official spec.
The value keeps moving.
Variation is expected. Use it with the median as a reference only.