Your browser already knows a surprising amount about the machine it's running on. This reads what it will tell us — memory, processor, graphics, screen, storage and battery — and flags anything that looks like it's holding you back. Nothing is uploaded, nothing is stored.
Reading what your browser reports.
A browser can only see so much. A proper bench check covers drive health, temperatures, dust, battery wear and what's actually slowing you down.
This is an estimate based on what your browser chooses to report, and some browsers deliberately round or hide these numbers for privacy. It is not a substitute for a hands-on diagnostic — treat it as a starting point.
