Speed-Check

Free browser speed test — download, upload, ping & jitter

Browser Extensions Web App Chrome Extensions Developer Tools發布於 2026年5月20日

什麼是 Speed-Check？

Speed-Check is a free, no-signup internet speed test that runs right in your browser. Measure download, upload, ping and jitter with accurate results powered by M-Lab's NDT7 protocol and Cloudflare edge servers. Get instant performance insights, compare your speed to 200+ countries, and embed the widget on your own site. Also available as a Chrome & Firefox extension and an installable PWA — fast, lightweight, privacy-friendly, no tracking beyond anonymous analytics.

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