System
Local device and browser summary
Collect viewport, screen size, DPR, and other values the browser already exposes.
Press Start to show the environment summary readable in this tab.
Not started
Not a hardware health or certification check.
Details and limits
How to check
Press Start (or refresh) to show a summary readable in this tab. Values stay on this device.
Limits
UA hints and platform strings are limited to what the browser already exposes. They do not identify hardware models or warranty status.
If something feels wrong
If numbers look odd, check window size, zoom, and OS scaling.
FAQ
Is this sent to a server?
No. It is displayed on the page only — no transmit or fingerprint store.
Is this a PC health check?
No. It is only an environment summary the browser already shows.