Browser test guides

Understand what your browser test can prove, what can distort the number and what to check next before blaming the hardware.

Start with the symptom, not the score

A useful browser test narrows the problem. If a key never arrives, a mouse button disappears or a timing result changes wildly, the next step is to separate browser behavior from operating-system settings and hardware. These guides explain that boundary instead of pretending every web number is a hardware specification.

Four guides for the most common questions

Keyboard ghosting & rolloverSimultaneous keys, missing combinations and practical rollover testing.Mouse polling rate explainedWhy browser Hz and USB polling are related but not identical.Reaction time & system latencyHow human response and the display/input pipeline combine.Browser input troubleshootingA repeatable checklist when a keyboard or mouse test looks wrong.

How BenchRush writes these guides

The site starts from the behavior exposed to a normal web page: keyboard events, pointer events, wheel events, animation timing and high-resolution browser timers. When a browser cannot directly observe USB packets, switch electronics or panel electronics, the guide says so. That limitation is part of the answer.