Direct answer
What these Device Information browser tests can tell you
These pages summarize the browser, viewport, screen, language, timezone and feature support that the current browser exposes. The values are shown independently for troubleshooting and are not combined into a persistent device identifier.
Useful starting points
- A support conversation needs a concise browser and screen summary
- A page behaves differently at another viewport, scale or orientation
- Camera, microphone, touch, gamepad or fullscreen capability needs checking
Evidence shown in the browser
- Browser-reported platform, language and online state
- Viewport, screen, pixel ratio, orientation and touch capability
- Direct feature detection for relevant browser APIs
Important limit
Reduced user-agent data and privacy protections can generalize values; these pages cannot reliably identify an exact model, owner, serial number or physical hardware specification.
For a clearer comparison, repeat the same action, change one relevant condition at a time, and record the browser, operating-system family, date and exact visible result. Use the page title and canonical URL when sharing the observation; do not describe a browser result as hardware certification.
Read the testing methodology or review our source and correction standards.
Focused tests
Choose a Device Information test
Open the page that matches the observation you want to reproduce.
Device Information
Review browser, operating-system estimate, screen, viewport, language, timezone and capability information without generating an identifier.
Open test →DIBrowser Information
Show practical browser and platform details alongside feature detection rather than relying on the browser name alone.
Open test →DIViewport Size Checker
Track the current layout viewport and compare it with the reported screen size and device pixel ratio.
Open test →DIScreen DPI Estimate
Explain browser pixel ratio and provide an estimate without claiming exact physical screen density.
Open test →DIQuick Device Check
Walk through browser, screen, keyboard, pointer, speaker, microphone and webcam checks, skipping any permission you do not want to grant.
Open test →