Speed Test

Multi-threaded speed test: parallel connections measure download and upload throughput, HTTP round-trip latency and jitter, with each connection's contribution shown — a lagging stream usually means packet loss or a rate-limiting middlebox.

Speed Test is a free online tool from Zapbox. Multi-threaded speed test: parallel connections measure download and upload throughput, HTTP round-trip latency and jitter, with each connection's contribution shown — a lagging stream usually means packet loss or a rate-limiting middlebox. This tool talks to our server to work; the page explains exactly what it sends.

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