Tests mostly run in your browser. Microphone/camera data is not saved on the server.
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How to use and interpret Screen Resolution Test
What this test checks
Shows browser-visible screen size, viewport, pixel ratio and color depth.
See screen size, viewport, pixel ratio and color depth.
How to interpret the result
Use the visual or timing result as an initial screen check. Repeat the test fullscreen and at the display’s normal resolution for the most useful comparison.
Browser limitations
Browser tests cannot automatically prove a physical panel defect. Dead pixels, uniformity and backlight issues still require visual confirmation on the actual display.
Frequently asked questions
What does Screen Resolution Test check?
Shows browser-visible screen size, viewport, pixel ratio and color depth.
Can a browser confirm a dead pixel or panel fault?
It can display controlled test patterns, but the final confirmation is visual because the browser cannot inspect the physical panel itself.
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.