What this test measures
When you press a key, the signal travels from the keyboard switch, through USB or Bluetooth, through the operating system and the browser, and finally appears on screen. This test measures the part the browser can see: the time from when the key event was created to the next frame drawn on your screen.
The result includes your browser's processing time and the wait for the next screen refresh, so a 60 Hz screen adds up to about 16.7 ms and a 144 Hz screen about 7 ms. The keyboard's own hardware delay happens before the browser receives the key, so it can't be measured by any website. That needs a high-speed camera or special hardware.
How to read the results
- Average: your typical delay. Lower is better.
- Jitter: how much the delay varies. Low jitter feels more consistent.
- Red bars in the chart are presses above 25 ms.
How to reduce input lag
- Use a wired keyboard, or a 2.4 GHz dongle instead of Bluetooth.
- Use a high refresh rate monitor (120/144 Hz or more).
- Close heavy background apps and browser tabs.
- Turn on Game Mode in Windows and update your keyboard firmware.
Frequently asked questions
What is good keyboard latency?
Gaming keyboards have around 1–10 ms of hardware latency. In this browser test, results close to one screen frame, about 7 ms at 144 Hz or 17 ms at 60 Hz, are good.
Is Bluetooth keyboard latency worse?
Usually yes. Bluetooth often adds 10–30 ms and more jitter than a wired keyboard or a 2.4 GHz wireless dongle.
Can a website measure true keyboard latency?
Not completely. A website only sees the key once the operating system delivers it. The switch and USB delay before that need special hardware to measure.