I am now sharing about the website/app speedtest.net. This website/ app is the most accurate till date. It is very easy to use. After entering into the website speedtest.net we have to click on a icon called begin test. With in seconds the result will shown.
Speedtest will provide detailed information about ping / download /upload. Speedtest mobile App available in playstore/ ios store. But once we check the internet speed some ads will apper into that page. That irritates me. But anyway I suggesting all of you try this website/ app for testing your internet speed.