Display geometry and scaling
Inspect viewport size, screen resolution, pixel ratio, orientation, color depth, and fullscreen behavior.
Open testConfirm refresh cadence, graphics acceleration, controller input, keyboard combinations, mouse events, audio routing, display geometry, and connection consistency before a longer benchmark.
Inspect viewport size, screen resolution, pixel ratio, orientation, color depth, and fullscreen behavior.
Open testEstimate the browser’s animation cadence and inspect frame-time stability with requestAnimationFrame.
Open testCreate a local WebGL context, inspect limits and extensions, and run a brief animation workload.
Open testRecord keydown and keyup events, inspect codes, and see how many simultaneous keys the browser receives.
Open testVerify pointer movement, primary and auxiliary buttons, wheel direction, double clicks, and browser-reported coordinates.
Open testRead connected gamepads, buttons, triggers, stick axes, timestamps, and mapping through the browser Gamepad API.
Open testPlay short, low-level left, right, and centered tones to verify channel routing and obvious distortion.
Open testCheck left/right routing, jack detection, balance, intermittent contact, and obvious noise with controlled tones.
Open testMeasure repeated requests to this same site for connection, response, transfer, and cache behavior without contacting a third-party speed-test service.
Open testWhat a browser key visualizer can reveal, what the operating system may intercept, and when to confirm with another application.
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