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How does DeadPixelTest.net handle your data?

Most diagnostic tests run locally in your browser. The site uses Microsoft Clarity and Yandex.Metrika to understand how visitors use, navigate and experience the website, and may use Google AdSense on eligible content and tool pages. Camera, microphone, location and sensor access only starts after you choose to grant the relevant browser permission.

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Privacy Policy

Last updated: August 23, 2026.

DeadPixelTest.net provides browser-based screen and device diagnostic tools. This policy explains what information may be processed when you use the website and how third-party services used for analytics and advertising may handle data.

Diagnostic tools and local processing

Core tests such as screen colors, keyboard visualization, mouse testing, drawing, and the Complete Screen Test are designed to run in your browser. Test observations, recent-tool history, preferences, and temporary wizard progress may be stored locally on your device using browser storage. DeadPixelTest.net does not receive the text you type into the keyboard tester or the drawing content created in the stylus tester merely because you use those tools.

Camera, microphone, location and sensor permissions

Some tools need browser permission to access a camera, microphone, location, motion, orientation or another device capability. Access begins only after you start the relevant test and the browser grants permission. Camera previews, microphone test input and similar diagnostic streams are processed in the browser by the tool unless a page clearly states otherwise. You can revoke permissions through your browser or device settings.

Microsoft Clarity

We use Microsoft Clarity to understand how visitors use and navigate DeadPixelTest.net. Clarity may provide aggregated usage insights such as page visits, clicks, scrolling behavior, heatmaps, session interaction recordings, and general browser or device information. Microsoft Clarity may use cookies or similar technologies and process technical information according to Microsoft's privacy terms and the consent choices available to you. Our diagnostic tools are designed to run locally in the browser; we do not intentionally configure the keyboard tester to send individual key names, typed content, camera video, microphone audio, drawings, or precise test results to Clarity.

Yandex.Metrika

We use Yandex.Metrika to measure website usage and technical performance. The configured counter may collect page visits, referrers, link clicks, click maps, scrolling and interaction data through Webvisor, as well as general browser, device and performance information. We also send limited diagnostic goal names such as a tester being started or a guided screen test being completed, together with the relevant tool page identifier. We do not intentionally send typed keyboard content, camera video, microphone audio, drawings, precise location coordinates, or the visual contents of a diagnostic test as custom goal data.

For performance monitoring, the site may send browser-measured timing values such as time to first byte, DOM content loaded time, page load time, First Contentful Paint, Largest Contentful Paint, Cumulative Layout Shift and Interaction to Next Paint where the browser exposes those measurements. These values are used to identify slow pages and improve the user experience.

Google AdSense

Eligible content and diagnostic pages may load Google AdSense. Google and its partners may use cookies or other technologies to serve, measure and limit advertising, subject to user choices, applicable law and Google's policies. AdSense is intentionally not loaded on our About, Contact, Privacy, Terms, 404, unpublished template, navigation-hub and Complete Screen Test pages in this build.

Consent and privacy choices

Where required, consent for advertising, analytics or measurement cookies and related data processing should be collected through an appropriate consent solution. For Google AdSense, a Google-certified consent management platform should be used where Google requires one. Visitors can also control cookies, site data and permissions in their browser settings. Advertising and analytics availability may vary by region and by consent choice.

Information collected by web hosting and security systems

Like most websites, hosting infrastructure may process technical request information such as IP address, date and time, requested URL, browser details and security logs. This information may be necessary to deliver the site, prevent abuse and troubleshoot technical problems.

Local storage

Some features use local storage to remember preferences, recently visited tests or unfinished local test progress. You can remove this information by clearing site data in your browser.

Third-party links

Pages may link to external websites. Their privacy practices are controlled by those third parties, not DeadPixelTest.net.

Children's privacy

DeadPixelTest.net is a general-purpose diagnostic utility and is not designed to collect personal information from children. Do not provide unnecessary personal information through any browser prompt or contact method.

Changes to this policy

We may update this policy when site features, analytics, advertising services or legal requirements change. The date at the top of this page shows the latest revision.

Contact

For privacy questions, use the Contact page.

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Complete Screen TestRun pixels, colors, uniformity, contrast, sharpness and motion in one guided check.Dead Pixel TestInspect solid colors for dead, stuck, bright or dark pixels.Touch Screen TestCheck touch coverage, dragging continuity and dead zones.Keyboard TesterTest a full-size keyboard and confirm every key press.Mouse TesterTest buttons, wheel, movement, dragging and double-clicks.Audio TesterCheck speakers, stereo channels, tones and microphone input.Camera & WebcamTest built-in, USB, phone, tablet and compatible TV cameras.Microphone TesterView microphone levels, waveform, recording and playback.Pixel ExerciserRun full-screen rapid color cycling for suspected stuck pixels.Gradient TestInspect gradients, tonal transitions and visible banding.Brightness & ContrastCheck black levels, white saturation and contrast separation.Screen Size TestView viewport, resolution, pixel ratio and display data.Text SharpnessInspect text rendering, browser scaling and clarity.Motion & GhostingObserve motion blur, ghosting and response behavior.Resolution & ScalingCheck screen resolution, CSS pixels and scaling.Device InformationReview screen, browser, hardware and platform information.Browser CapabilityCheck which browser APIs and hardware features are supported.Network TestCheck connection status, latency and estimated download speed.GPS & LocationTest browser geolocation, accuracy, altitude and speed.Sensor TesterTest orientation, motion, acceleration and rotation sensors.Multi-Touch TesterTrack multiple touch points, pinching and rotation gestures.Screen Color ToolsOpen full-screen colors with timers, lighting presets and 4K background downloads.Response Time TestObserve ghosting, blur and pixel-transition behavior at several speeds.Stylus Drawing TestCheck pen, touch, pressure, tilt and drawing continuity in your browser.