Internet Speed Test: download, upload & latency
Free in-browser internet speed test against Cloudflare's global anycast edge. Measures download, upload and latency / jitter. No signup, no third-party tracking — just the same public endpoints Cloudflare's own speed test uses.
A full run uses ~80 MB of bandwidth. Cellular users should consider that before running.
Internet Speed Test — frequently asked questions
It measures throughput between your browser and Cloudflare's global anycast edge — the same endpoints used by speed.cloudflare.com. Results are close to what you'd see in their official test, with the caveat that browser overhead adds a small floor.
Residential and mobile internet plans are typically asymmetric — downstream gets more bandwidth than upstream. Fiber and business plans are usually symmetric.
Under 30 ms for the same continent, under 80 ms across an ocean. Gaming wants under 50 ms; video calls under 150 ms; web browsing barely cares.