How to Check Internet Connection Speed in ASP.NET

How to check internet connection speed(download speed) in asp.net.

Follow given code to check your internet connection speed (download speed).

Add namespace

using System.Net;

 
write code on test button click event..

      Uri URL = new Uri("http://sixhoej.net/speedtest/1024kb.txt");

        WebClient wc = new WebClient();

        double starttime = Environment.TickCount;

        // download file from the specified URL, and save it to C:\speedtest.txt

        wc.DownloadFile(URL, @"C:\speedtest.txt");

        // get current tickcount

        double endtime = Environment.TickCount;

        // how many seconds did it take?

        // we are calculating this by subtracting starttime from endtime

        // and dividing by 1000 (since the tickcount is in miliseconds.. 1000 ms = 1 sec)

        double secs = Math.Floor(endtime - starttime) / 1000;

        // round the number of secs and remove the decimal point

        double secs2 = Math.Round(secs, 0);

 

 

        // calculate download rate in kb per sec.

        // this is done by dividing 1024 by the number of seconds it

        // took to download the file (1024 bytes = 1 kilobyte)

        double kbsec = Math.Round(1024 / secs);

        Label1.Text = "Download rate: " + kbsec + " kb/sec";

        try

        {

            // delete downloaded file

            System.IO.File.Delete(@"C:\speedtest.txt");

             Response.Write("Done.");

        }

        catch

        {

            Response.Write("Couldn't delete download file.");

             Response.Write("To delete the file yourself, go to your C-drive and look for the file 'speedtest.txt'.");            

        }