This is a free tool to check your internet's upload and download speed. This tool will also show you your ip address. You can access this tool from your desktop or even from your mobile and it will show you exact speed of your internet. By using this tool you can check centurylink speed test, netflix speed test, internet speed test, ptcl speed test, broadband speed test, Comcast speed test. You can access this tool from anywhere. It tells you accurate results and the best thing is that this tool is absolutely free. Just go to this start and click on start and it will do the rest.