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显示器检测 / 屏幕测试 https://shijuezu.com/ #URL
屏幕测试 / 显示器检测 - MonitorTester
https://monitortester.com/
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MonitorTester
Screen Test - Free Online Monitor Tester | MonitorTester
Free online screen test in your browser: solid colors, grayscale, gradients, color bars and motion patterns to check dead pixels, bleed, tint and burn-in.