Speedtest.net is the goto destination for speed testing on the Internet. But you might want to give fast.com a test run. Fast.com is a new tool launched by Netflix to check your Internet speed. It has a simple interface that displays just the test for download speed and its result. There is no upload test, no ping and no ads. It even has a link to speedtest.net if you need to compare and detail test result.
In addition to no ads, fast.com uses Netflix’s own servers to accomplish the test. This mitigate one possible issue when using speedtest.net where ISPs give preferential treatment to those connections used for the test. The default server selection by speediest.net might be a server inside your ISP’s network, which makes the speed looks great. In most cases, the download speed you get from fast.com should be close to what you get from other tools.