Free tool
Test your latency to Cernet
How fast does our infrastructure respond from your location? An honest measurement.
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NL-DC1 · Amsterdam
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NL-DC2 · Eemshaven
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DE-DC1 · Frankfurt
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Click "Start test" to begin
FAQ
Frequently asked questions
How does this tool measure?
Your browser performs 4 round-trips to our edge and we take the median. Between DCs we add the typical geographic offset. Real-time, no mock data.
Why does my measurement differ from a friend?
ISP, Wi-Fi, routing. Latency to Amsterdam from Utrecht is ~5ms; from Madrid ~35ms; from New York ~80ms.