4ip.su | Speedtest is a service for measuring the performance of your ISP's speed. Today it's millions of active measurements, 4ip | Speedtest is the leading leader in testing the speed of the Internet.

Mission 4ip | Speedtest is to help build the best and fastest Internet. Proven Speedtest technology is specifically designed for accurate and unbiased Internet performance testing, which allows people around the world to identify and fix problems with the speed of their Internet connections.

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