Fast.com estimates your current internet download speed. You will generally be able to get this speed from leading internet services, which use globally distributed servers.

Download speed is most relevant for people who are consuming content on the internet, and we want Fast.com to be a very simple and fast speed test.

Fast.com is a simple-to-use way for consumers to test what speed their ISP provides. It is not a network engineer's analysis and diagnostic speed test suite.

To calculate the download speed, Fast.com performs a series of downloads from Netflix servers.

Fast.com will test internet speed globally on any device (phone, laptop, or smart TV with browser).

We want our members to have a simple, quick, advert-free way to estimate the internet speed provided by their ISP.

If results from fast.com and other speed tests often show less speed than you have paid for, you can ask your ISP about the results.