Choose the best internet service provider (ISP) for your needsĭownload speed refers to the time it takes to retrieve data from the Internet and is measured in megabits per second (Mbps).Troubleshoot internet connection problems.Compare your speed test results to other users in your area.Track your speed test results over time to see how your internet connection is performing.Measure your download and upload speeds in Mbps (megabits per second).Speedtest is one of the most popular internet speed testing tools in the world. It also measures ping, or latency, which is the time it takes for data to travel from your device to a server and back. Speedtest is an internet speed testing tool that measures the download and upload speeds of your internet connection. Your internet speed is determined by your internet service provider ( ISP) and the plan you have subscribed to. The higher the number, the faster your internet speed. It is measured in megabits per second ( Mbps) or gigabits per second (Gbps). Internet speed refers to the rate at which data is transferred over the Internet.