Guide
What each test measures, how scoring works (median of five attempts), and what browser and device latency mean for your numbers.
Press start. The panel turns red — wait, and don't click yet.
After a random delay (2–5 seconds), the panel turns green.
Click, tap, or press Space the instant you see green.
Clicking early is a false start: that attempt doesn't count, so wait for green.
Complete five attempts to get your median score, best click, and percentile.