FAST.com

FAST.com is an internet speed test from Netflix that estimates the current speed of a user’s connection. The initial result emphasizes download speed, and the additional information panel can show upload speed and loaded and unloaded latency.

It is useful for a quick check on a home or mobile connection, including in the United States. Results depend on network conditions and the test servers at that moment; the service is intended for general use rather than formal enterprise bandwidth certification.