Speed test

Free

Download, upload, latency and bufferbloat with a clear verdict: good for video calls, 4K or gaming?

Up to 10 s per phase; stops earlier once the speed is stable. On fast fiber it may use several hundred MB.

Download

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Upload

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Latency

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Under load

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Contracted speed (Mbps)

Measures against speed.cloudflare.com, the same servers as Cloudflare's official test. Only filler data is sent.

Script that measures speed on a schedule and keeps a history to back up complaints

Available on the PRO plan.