A broadband checker checks the internet speed of your cable.

There are several internet  broadband checker  available to check the speed of the internet cable. The basic job of a broadband checker is to start a download of a file and see how long it takes, and then it uploads another file and sees how long that takes. Using the download and upload speeds as an indicator, it then supplies the user with the relevant data for the broadband speed. However it should be noted that no other application of the Internet should be running simultaneously so as to get an inaccurate picture. The broadband cable provider will have a broadband checker on their homepage.