What the result means
The timer measures the delay between the visual signal and your input in this browser. Device latency, display refresh rate and input hardware affect the number.
Free reaction tool
REACTION TIME TEST.
Wait for the signal, react as fast as you can and complete five measured attempts.
ATTEMPT 1 / 5
AVERAGE—BEST—
Keep the test honest
Clicking before the signal cancels that attempt. Use the same device and input method when comparing your own sessions.