Read the result as a device-and-person measurement
Each round waits a random 1.8–6 seconds. The page starts its timer when it switches to the green state, then records the next pointer press. The number therefore includes browser rendering and display/input delay as well as your response. It is not an isolated measurement of brain speed or CS2 network latency.
Pressing during red ends the round as “too early” and produces no valid time. It does not replace the best successful time. The page displays the latest result and the minimum valid time in the current session; it does not calculate an average, a percentile or a permanent personal record. Refreshing or leaving the page resets the session.
Use five attempts without chasing the minimum
Keep the same device and pointer, rest the pointer inside the test area and complete five valid rounds. Write down each time and separately note early presses. Example: for 210, 240, 220, 260 and 230 ms, sorting gives a median of 230 ms; the displayed session best would be 210 ms. You must calculate the median yourself.
Compare another set under the same conditions. A smaller best time together with more early presses usually means guessing, not faster reactions. This page has no ranking and no comparison with other players.
What the result leaves out
A CS2 duel adds sound, opponent movement, crosshair position, weapon readiness and the decision to shoot. This test has one visual signal and one pointer action. The target click trainer adds pointer travel; a structured game-practice routine addresses the mechanics missing from both browser exercises.
