Fast.com is described as 'Powered by Netflix, Fast.com estimates your current download speed. You will generally be able to get this speed from leading internet services, which use globally distributed servers' and is a popular internet speed test app in the network & admin category. There are more than 25 alternatives to Fast.com, not only websites but also apps for a variety of platforms, including Android, Windows, Mac and iPhone apps. The best Fast.com alternative is Speedtest by Ookla, which is free. Other great sites and apps similar to Fast.com are LibreSpeed, nPerf, Testmy.net and Orb.net.