Device Checks
Browser & Device Info — One-glance Read
What does this page see about your device? Resolution, viewport, CPU cores, memory, OS, browser — all in one read.
Display
Screen resolution—
Viewport—
Device pixel ratio—
Color depth—
Color gamut—
Orientation—
Device
CPU cores (logical)—
Memory (rounded)—
Touch capable—
Max touch points—
Software
Browser—
OS—
Language—
Timezone—
Cookies enabled
Do Not Track—
Full user agent string
Frequently asked questions
What's the difference between viewport and screen resolution?
Screen resolution is your monitor's pixel grid — what your OS reports. Viewport is the area of that screen the browser is currently showing — your window minus chrome (toolbars, scrollbars). On a 4K monitor with a small browser window, screen reports 3840×2160 but viewport might be 1280×720. Web layout cares about viewport.
Why is device pixel ratio not 1?
High-DPI displays (Retina, 4K laptop screens, modern phones) pack multiple physical pixels into one CSS pixel for sharper rendering. A 'devicePixelRatio' of 2 means each CSS pixel is 4 physical pixels (2×2). The web treats CSS pixels as the standard unit, so a 1080p design looks the same on a Retina screen — just sharper.
Why does my CPU show as 'unknown'?
Browsers expose a coarse 'hardware concurrency' number (logical CPU cores) but not the actual CPU model — that would be a fingerprinting risk. Modern browsers cap the reported value too (Chrome maxes around 16 even on 32-core machines). For exact CPU info, check OS settings (System Information / About this PC).
Why is device memory rounded?
Privacy guard. Browsers report device memory as a rounded GB value (1, 2, 4, 8, 16+) — never the exact MB count. This is enough for sites to adapt (load lite version under 4 GB) without enabling fingerprinting. Older browsers don't expose memory at all; the value will show '—' there.
Should I be worried this info is exposed?
Most of it is already public — every site you visit reads your user agent, screen dims, and timezone. The combination is your 'fingerprint' (see EFF's Cover Your Tracks). Modern privacy browsers (Brave, Firefox in private mode, Tor) actively reduce or randomise these values. We just display what your browser is already sharing.
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