With just few clicks, this plugin creates an exact copy of your WordPress site on your existing hosting provider in a period time.
Demo: https://codecanyon.net/item/wordpress-sandbox-easy-to-create-a-test-environment/26611348
This app allows you to easily and quickly check your internet speed anywhere, ookla server is used here so you can check your internet speed very accurately It’s a small application that makes it easy for you to use.
Demo: https://codecanyon.net/item/internet-speed-test-with-amazing-ui/27807740
PassMark PerformanceTest Portable is a set of tests that measure the overall performance of your PC compared to other computers.
Demo: http://www.passmark.com