Click Reaction Test

A click, timed from a shape change

A click reaction test asks a narrow question: once a figure changes, how quickly can you close a click? Lumenhold answers that with Glyph mode. You arm the stage. A hex waits in a cool, dim hold. After a random pause the hex becomes a diamond. That diamond is the go signal. Click it. The clock reports milliseconds from the shape change to your pointer-down. Five valid hits become a round average, kept on this device.

The point of a glyph, instead of a full-stage flare, is that the cue is a figure you can aim at. Color washes are easy to notice and easy to anticipate as “the whole box lit up.” A diamond is smaller, sharper, and easier to miss if your eyes drifted. That is useful if you came here because you wanted a click reaction check rather than a brightness check. The delay is still random — usually between about 1.4 and 4.3 seconds — so you cannot ride a rhythm. Click during the hold and the trial is a false start. It does not enter the five-hit average.

Lumenhold is a browser drill, not a laboratory. It does not split sensation from decision from muscle. It does not know whether you used a mouse, a trackpad, or a thumb. Those input paths feel different and they print different numbers. Compare this round to your last round on the same hardware before you treat a gap as a story about reflexes. Scores live in localStorage under a Lumenhold key. Clearing site data wipes them. Nothing is uploaded.

When a round finishes you also see an estimated percentile. That sticker is not scraped from other visitors and it is not a medical reference range. It is a comparison against a built-in, bell-shaped model of casual visual click times that ships with this page, centered near 250 ms. Treat the millisecond average as the result. Treat the percentile as a rough “where might this sit” label.

This page is not a medical device, not a diagnostic, and not affiliated with any clinic or other reaction-test brand. If you want the original visual reaction time test with an acid flare, use the homepage. If you want a reaction speed pass whose cue is a ring that snaps open, open that inner page. All three modes share one engine. Only the cue changes.

How to play

1. This page opens in Glyph (click reaction). You can still switch to Flare or Pulse in the side panel.
2. Click or tap the stage once to arm a trial. The hex is the wait; the diamond is the go.
3. Keep still. A random pause — usually between about 1.4 and 4.3 seconds — runs first.
4. The instant the diamond appears, click or tap. The stage reports milliseconds for that hit.
5. If you jump the gun, you get a false start. Retry that trial; it does not enter the average.
6. Five valid hits close the round. Your average and an estimated percentile appear. The lowest average on this browser is kept as a device best.

What the score means

Lower milliseconds are faster. A casual click on a shape change often lands somewhere in the mid-two-hundreds, with plenty of honest scatter around that. Hardware, browser, and whether you used a mouse or a thumb all move the number. Compare yourself to your own last round before you compare yourself to a stranger on the internet.

The “faster than ~X%” line is an estimate versus Lumenhold’s built-in distribution, not a claim about the world and not advice about health, sport, or driving. This page is not a medical device.