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A browser test measures a particular network path at a particular time. Understanding the units and destinations makes the result useful without treating it as a universal score.

How a speed test works

A browser test measures a particular network path at a particular time. Understanding the units and destinations makes the result useful without treating it as a universal score.

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Why two speed tests disagree

Different results can both be real. A result depends on endpoint, route, browser, traffic and measurement method; the largest number is not automatically the most accurate.

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Plan speed, Mbps and real downloads

A plan’s advertised speed is not the same as the speed of every download. Device links, overhead, content servers and shared use all affect the experience.

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