How to interpret the result
Browser values are useful for consistency checks, but privacy controls can reduce or generalize what is exposed. Treat “unknown” as unavailable evidence, not a defect.
Read browser-visible screen, processor, memory, language, connectivity, and platform signals in one place.
Waiting for a test.
Browser values are useful for consistency checks, but privacy controls can reduce or generalize what is exposed. Treat “unknown” as unavailable evidence, not a defect.
This page cannot prove the exact CPU model, serial number, installed RAM module, firmware state, or internal component authenticity.
Inspect viewport size, screen resolution, pixel ratio, orientation, color depth, and fullscreen behavior.
Open testCheck localStorage, sessionStorage, IndexedDB, storage estimates, and persistent-storage permission for this browser profile.
Open testParse a locally selected Windows battery-report HTML file for design capacity, full-charge capacity, cycle count, and a simple health ratio.
Open testWhat to verify while return and exchange options are still simple: identity, exterior, display, input, media, battery evidence, ports, updates, and recovery.
Read guideA layered inspection that cross-checks seller claims, visible condition, local reports, browser behavior, operating-system diagnostics, and a short real workload.
Read guideA browser can verify useful behavior without becoming firmware diagnostics, a lab instrument, a repair tool, or proof of internal component identity.
Read guide