Flush DNS resolver cache and close all opened sockets. Requires Chrome to be started with the --enable-net-benchmarking flag."Flush DNS & close sockets" allows you to quickly flush Chrome DNS resolver cache and close all opened sockets by either pressing the extension icon or using a shortcut "Ctrl+Shift+F".
Chrome needes to be started with "--enable-net-benchmarking" flag.
https://www.chromium.org/developers/how-tos/run-chromium-with-flags