Tests
Screen & Monitor Test
Inspect solid colors, gradients, uniformity, backlight bleed, motion, resolution, and estimated refresh rate.
Private by designProcessing happens locally in this browser. Device streams and raw readings are not uploaded.
What this test checks
How to use this test
Enter fullscreen, inspect each color in a dim room where appropriate, then run the timed refresh estimate.
What the results mean
You make the visual judgment. Resolution and refresh values are browser-reported or estimated.
Troubleshooting
Clean the display, disable zoom and adaptive refresh temporarily, and repeat at native display settings.
Browser limitation
These visual checks cannot automatically diagnose panel response time or physical panel health.