Keep this tab visible during measurement. The result estimates browser frame timing, not your monitor's certified specification.
YOUR RESULT → YOUR NEXT STEP
What does my result mean?
Choose what you observed. These explanations help you narrow down a problem; they are not an automatic hardware diagnosis.
The estimate is close to my display setting
What it means
The sample reflects browser animation timing. It is not a direct measurement of the physical panel.
What to do next
Repeat with the window fully on the target monitor and the tab visible. Compare with the system display setting.
A high-refresh monitor reads around 60 Hz
What it means
The system setting, power mode, remote session or browser scheduling may limit the observed cadence.
What to do next
Check the selected refresh rate in display settings, move the whole window to that monitor and repeat without a remote desktop session.
The sample varies or stops
What it means
Background tabs, variable refresh behavior and competing work can interrupt a stable sample.
What to do next
Keep this tab visible and close heavy workloads before restarting. Do not use this test to diagnose tearing, input latency or individual pixel response time.
QUICK START
How to use the refresh rate
Move the browser window onto the display you want to check.
Click Measure and keep the page in the foreground until the result appears.
Repeat after changing display settings or moving the window to another monitor.
READ YOUR RESULTS
Understanding your results
The test samples 180 animation-frame timestamps and converts the median interval to an estimated rate in Hz. This reflects the browser's rendering cadence, which often follows the display refresh rate.
Power saving, browser throttling, variable refresh rate and system load can affect the measurement. This is not a direct hardware query; use your operating-system display settings to confirm the configured monitor refresh rate.
Troubleshooting your refresh rate
A 144 Hz monitor reads around 60 Hz
Move the window fully onto the target monitor. Check its refresh rate in system display settings and rerun with the tab visible. Power saving, remote desktops and browser limits can lower the result.
Results differ between runs
Close heavy background work and keep the tab visible. The estimate follows animation-frame timing, not a direct panel measurement. Variable refresh rate and scheduling can change the result.
Still stuck? Report a test problem. Do not include recordings or private device information.
Frequently asked questions
Why does a high-refresh display show a lower result?
The browser or operating system may be limiting rendering cadence. Check the active display mode and power settings, then repeat with this page visible.
Can I compare multiple monitors?
Yes. Move the browser window fully onto each display and run a new measurement on that display.