Browser & Device Information

This is expected behavior for Chromium-based browsers like Brave, Opera, Vivaldi, or Microsoft Edge. These browsers share the underlying Blink engine and deliberately retain Chrome signatures in their User-Agent for compatibility. Look at the raw User-Agent string below the cards for ground-truth inspection.

Your operating system display scaling is active (e.g., 125% or 150% in Windows Display Settings, or scaled mode on macOS Retina). The browser reports CSS pixels. To calculate physical resolution, multiply the reported width and height by the displayed Device Pixel Ratio (DPR).

The active viewport (`window.innerWidth` and `innerHeight`) reflects the current visible web page area. Zooming the page (Ctrl + / Ctrl -) changes the virtual pixel ratio, dynamically recalculating the viewport dimensions in real time.

Web browsers report the timezone and locale set in your operating system regional preferences or masked by active VPN services and anti-fingerprinting privacy browser extensions, rather than querying your physical GPS location.

`navigator.deviceMemory` is a Chromium-only property. Apple Safari and Mozilla Firefox deliberately do not implement device memory reporting to protect user privacy. When an API is unsupported by your browser, DeviceChecker cleanly omits the row rather than displaying a misleading placeholder.

If WebRTC or Web Audio API are marked as unsupported, check whether you are using a hardened privacy browser (like Tor or LibreWolf), or if enterprise IT group policies or content-blocking extensions have disabled media streaming interfaces.

No. DeviceChecker does not look up, collect, log, or display your public IP address or geographic location. All telemetry shown on this page is evaluated directly inside your local browser memory using native HTML5 and W3C JavaScript APIs. No data is transmitted across the internet.

Yes. Standard browser properties like screen resolution, active viewport, preferred language, timezone, and user-agent are routinely exposed by all web browsers to enable responsive layout formatting and regional localization. This is standard web architecture and explains why this tool displays your setup instantly without needing permission dialogs.

Brave, Microsoft Edge, Opera, and Vivaldi are built on the open-source Chromium platform. To prevent older websites from artificially blocking non-Chrome browsers, and as part of modern User-Agent reduction privacy standards, Chromium browsers intentionally include the "Chrome" token in their user-agent strings. We label friendly browser names as best-effort interpretations for this reason.

Modern high-density displays (such as Apple Retina screens, 4K monitors, and high-end smartphones) use Display Scaling (e.g., 125%, 150%, or 200%). Web browsers report dimensions in virtual CSS pixels (`screen.width`). Multiplying the reported resolution by the Device Pixel Ratio (DPR) yields your physical display panel pixel count.

The legacy `navigator.userAgent` string is a monolithic text line originally created in the 1990s that became bloated and prone to passive tracking. User-Agent Client Hints (`navigator.userAgentData`) is a modern W3C standard that allows browsers to provide structured, granular brand and platform details cleanly without leaking excessive device information.

Never. DeviceChecker adheres strictly to a privacy-first engineering boundary. We do not use canvas rendering, WebGL vendor string inspection, audio buffer hashing, or font enumeration techniques. We strictly display standard, already-exposed browser and screen properties.