What it detects
Observe key intervals, tapping rhythm and OS key repeat. Includes samples and a report; cannot measure physical latency or USB polling rate.
Keyboard Performance Test
These tests observe your tapping rhythm and operating-system key repeat in the browser. They do not measure physical keyboard latency or USB polling rate, and do not assign a hardware score.
Keyboard input observations
These tests observe your tapping rhythm and operating-system key repeat in the browser. They do not measure physical keyboard latency or USB polling rate, and do not assign a hardware score.
Valid tests: 0 / 3
Key intervals
Mean, median and range of positive intervals between separate Space presses. These intervals include your finger movement and browser event delivery.
Press and release Space 25 times at a comfortable pace.
Keep this test area focused. Tab moves away and interrupts the run.
These tests observe your tapping rhythm and operating-system key repeat in the browser. They do not measure physical keyboard latency or USB polling rate, and do not assign a hardware score.
What these measurements mean
Observe key intervals, tapping rhythm and OS key repeat. Includes samples and a report; cannot measure physical latency or USB polling rate.
For comparable runs, use the same keyboard, browser and OS repeat settings. Release Space between taps; hold it continuously only in the repeat test.
What these measurements mean
Changes in these results can come from finger rhythm, OS repeat settings or browser scheduling. They do not identify wireless latency, USB faults or a damaged switch. Keep the setup consistent for practice comparisons; investigate suspected hardware problems with independent measurements.
Laptop, mechanical, and external keyboards
These tests observe your tapping rhythm and operating-system key repeat in the browser. They do not measure physical keyboard latency or USB polling rate, and do not assign a hardware score.
Browser and system limits
These tests observe your tapping rhythm and operating-system key repeat in the browser. They do not measure physical keyboard latency or USB polling rate, and do not assign a hardware score. Measuring physical latency requires a known physical trigger and an independent timing reference, such as a suitable high-speed-camera or hardware setup.
Mobile and virtual keyboard limits
Phone and tablet virtual keyboards do not expose the same physical key events, so this page is useful as an explanation but should be tested with a real keyboard.
What these measurements mean
For comparable runs, use the same keyboard, browser and OS repeat settings. Release Space between taps; hold it continuously only in the repeat test.
Key intervals
Press and release Space 25 times at a comfortable pace.
Mean, median and range of positive intervals between separate Space presses. These intervals include your finger movement and browser event delivery.
Tapping rhythm
Press and release Space 20 times at a steady rhythm.
CV = standard deviation ÷ mean interval × 100. A lower CV means more even tapping during this run; it does not grade the keyboard.
OS key repeat
Hold Space for 3 seconds without releasing.
Frequency between automatic repeat events while holding Space. The initial repeat delay is excluded. OS repeat settings and browser scheduling affect this observation.
These tests observe your tapping rhythm and operating-system key repeat in the browser. They do not measure physical keyboard latency or USB polling rate, and do not assign a hardware score.
Keyboard Performance Testing FAQ
Observe key intervals, tapping rhythm and OS key repeat. Includes samples and a report; cannot measure physical latency or USB polling rate.
What does this performance test measure?
Observe key intervals, tapping rhythm and OS key repeat. Includes samples and a report; cannot measure physical latency or USB polling rate.
Can it measure physical keyboard latency?
These tests observe your tapping rhythm and operating-system key repeat in the browser. They do not measure physical keyboard latency or USB polling rate, and do not assign a hardware score. Measuring physical latency requires a known physical trigger and an independent timing reference, such as a suitable high-speed-camera or hardware setup.
What does rhythm variation (CV) mean?
CV = standard deviation ÷ mean interval × 100. A lower CV means more even tapping during this run; it does not grade the keyboard.
Is OS key repeat the same as USB polling rate?
Frequency between automatic repeat events while holding Space. The initial repeat delay is excluded. OS repeat settings and browser scheduling affect this observation. Check the supported polling setting in the manufacturer's software. The OS-repeat test cannot verify USB polling rate or show that an upgrade is needed.
Can these results tell me which keyboard to buy?
Browser observations document the keys and combinations you tested. They do not certify every advertised feature or provide a hardware score for an upgrade or return decision.
Need More Help?
If you have questions about your keyboard performance results, contact our support team.
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