Nice information.Here by i wish to add some points about to increase internet speed.These are,
1.clear cookies from your browser
2.Delete unwanted files
3.PC Optimization:
It is important to clean your PC regularly. It means a normal maintenance tasks such as, cleaning the disks, registry repairs and Disk Derangement.
4.If you are using a DSL connection over your landline, make sure that you have high-quality filters in place to get optimum signal speed.
5.Upgrade your modem.
6.Use Updated browser.
7.Consult with your Internet service provider to ensure that your modem is configured correctly.
8.Replace your telephone modem with a fast-access connection such as wave, ISDN, DSL, satellite, a cable modem.
9.Tweak our router settings
10.Install Antivirus Software.
11.Reduce our bandwidth overhead
Still your internet speed is slow than, Contact your ISP and get a latest speed plan from them. Its better way to increase your speed
After, completing this steps, you can check our internet speed whether increase or not using this site ScanMySpeed.com