Browser hardware guides
Short, controlled troubleshooting workflows that return you to the relevant local tool.
How to test a mouse before you replace it
How to test a keyboard without opening a document
How to test a webcam before a call
How to test a microphone and read the level
Mouse polling rate, explained without the marketing
Keyboard ghosting and rollover, explained
Webcam resolution: why a 1080p camera sends 640×480
Left and right speakers reversed, and which side is wrong
How to test a monitor for pixel and backlight faults
Dead pixel vs stuck pixel, and why the difference matters
How to test a controller before you blame the game
Controller stick drift, and how to prove you have it
How to increase CPS, and what actually changes it
Input lag, and the part a browser can measure
Each of these 14 guides answers one question a test result alone cannot: whether the thing you measured is actually a fault, and what to change next. They cover how to test a mouse, a keyboard, a webcam, a microphone, a monitor and a controller, plus the explainers behind the numbers — polling rate, keyboard ghosting, webcam resolution, stick drift, input lag and click speed.
Every guide follows the same order: define the symptom, collect a controlled baseline, read the result, respect what a browser cannot see, then decide. Each one links directly to the free online tests that collect the evidence, so you never have to leave the browser or install anything.