Tests mostly run in your browser. Microphone/camera data is not saved on the server.
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How to use and interpret Browser Test
What this test checks
Checks browser, JavaScript, cookies, localStorage and basic feature support.
Check browser, cookies, JavaScript, localStorage and permissions.
How to interpret the result
Treat the result as a browser-visible performance or capability signal. Compare repeated runs under similar conditions rather than relying on a single score.
Browser limitations
A web browser cannot directly read CPU/GPU temperatures, storage S.M.A.R.T. health, physical RAM errors, BIOS data or every driver state. Those items are not included as measured facts.
Frequently asked questions
What does Browser Test check?
Checks browser, JavaScript, cookies, localStorage and basic feature support.
Can this test diagnose a hardware failure?
No. It can highlight browser-visible symptoms, but hardware faults need operating-system or manufacturer diagnostics when deeper checks are required.
What should I do if the result looks bad?
Repeat the test under the same conditions, check the suggested next diagnostic and compare with another browser, connection or device where practical. Use the related guides for step-by-step troubleshooting.
The browser cannot read real motherboard, disk model or temperature sensors. These are estimated details safely exposed by the browser.
Tests mostly run in your browser. Microphone/camera data is not saved on the server.
Checks HTTPS, cookies, local storage, online state and basic browser security signals. Files on your computer are not scanned for malware.
Check result
Important: a web page cannot scan Windows Defender, running processes or files on disk. Therefore this tool never claims your computer is virus-free.
Tests mostly run in your browser. Microphone/camera data is not saved on the server.