Speed Test : upload and download. Test your download, upload and latency from a mobile phone up to optical fiber, and everything between.
This test is pure HTML5 This test requires your browser's full attention for accurate results. Run the test when your network is quiet, and don't switch to other applications or change browser tabs during the test. Speedtest.net - The Global Broadband Speed Test. Speed Test. Why do I get a “socket error” message?
An error may result from having the speed test open in more than one browser tab or window. The test may fail to complete and display the following message: “A socket error occurred during the Upload test. Please try again later.” To prevent this error, and get the most accurate test results, close all other browser tabs and windows before running. If you continue to get a socket error message, or another type of error message, please provide feedback by emailing us at speedtestfeedback@fusionconnect.com.