Understand tool scope, browser effects and the limits of visual inspection.
ScreenTestOK provides browser patterns, device information, frame sampling, touch records, geometry calculations and guides. Patterns and browser reports support observation and cannot replace instrument measurements or hardware acceptance testing.
Visual observation is not a professional test report. The site does not automatically count dead pixels, certify hardware or promise to repair defects, image retention or OLED aging.
Browsers, system settings, color management, cables, ambient light and viewing position affect output. Browser reports, instrument measurements and native panel specifications are different kinds of information.
Use comfortable brightness and limit test duration. Follow the manufacturer's cleaning, maintenance and pixel-refresh instructions. Stop and adjust your environment if viewing becomes uncomfortable.
Patterns and explanations assist understanding. Brands and product names belong to their respective owners; external providers control their content and availability.
Pages and information may change as features develop. Please report errors or inaccurate content through the contact page.