Use Speedtest on all your devices with our free desktop and mobile apps. Test my internet speed? To learn more about the specific requirements of the bandwidth speed test, we've prepared the sections below that will explain the details of what actually happening during the speedtest. Test your internet speed and performance with Speedtest by Ookla, available on desktop and mobile devices for free. Test your internet speed and the quality of your DSL, xDSL, cable, optical fiber or satellite broadband connection with our bandwidth and internet speed test.
