Allows to test connexion speed to various parts of the world. To be client-platform independant, the tests uses Javascript to perform the downloads.
To ease the use of XHR, jQuery is used. Results can be loggued and mailed, saving some troubles to the visitor of the page.
All the Javascript heavy lifting was made by Johan Andersson for his Nettest project: from https://github.com/anderssonjohan/Nettest