Browser & Device Benchmark
A lightweight check of how fast your browser and device are: compute speed, frame rate, and real round-trip latency to our server. No big downloads, nothing uploaded, nothing stored. Takes about three seconds.
What do these numbers mean?
Compute (JavaScript ops/sec)
Runs a fixed math workload for a fraction of a second and counts how many operations your CPU completed, in millions per second. Higher is faster. It reflects your processor and how efficiently the browser's JavaScript engine runs, so the same device can score differently across browsers.
Frame rate (fps)
Measures how many animation frames your browser paints per second. Most displays cap at 60 fps; gaming and newer phones reach 120. A number far below your display's refresh rate suggests the page (or your device) is under load.
Server latency
Times several tiny round trips to our server (a few hundred bytes each, not a bandwidth test). The median is your typical round-trip time; jitter is how much it varied. Low and steady is good. This depends on your distance to the server and your network quality, not your raw download speed.
Network estimate
Your browser's own rough guess at your connection (effective type, downlink, round-trip), reported for free without transferring any data. It is an estimate, often rounded, and not available in every browser.
Privacy: every measurement happens in your browser. We never store results, and the latency pings carry no data about you.