Cookies & consent
Necessary site functions work without analytics. Optional Firebase Analytics storage is enabled only after you choose Allow analytics. You can change that choice from the privacy controls.
Our operating principle
Utility, privacy clarity and diagnostic usefulness come first. Every browser measurement is labelled by precision, every sensitive permission follows an explanation, and unsupported capability is never presented as hardware failure.
What the browser can prove
DeviceDoctor reports only what the current browser session can observe. Browser-reported, estimated and user-confirmed results include their limits and a practical next step.