Category
Test your hardware and reflexes
Run your gear through the same checks a technician would, right in the tab you already have open.
A dead pixel doesn't announce itself until a monitor is filled edge-to-edge with one colour, and a key that drops input under fast typing rarely shows up until it costs you a match or a document. These testers run the same checks a hardware technician would — full keyboard sweeps, click timing, controller drift — directly in the tab that's already open, with an answer in seconds rather than a support ticket.