FAST.com

FAST.com is an internet speed testing website operated by Netflix. Opening the site starts a measurement of the current connection, with additional connection details available through its interface. It is useful for a quick view of network performance. Results reflect the device, network conditions and test circumstances at the time rather than a guaranteed service speed.

It is useful for investigating a connection or network-information question through the available tools. Its focus includes Internet speed measurement, Connection performance details and Quick browser-based testing, with the test context and the tool's own definitions helping explain what an individual measurement or result represents.