THIS IS WHAT CAME UP when I clicked the link you gave:
If you have ever changed the language of a website that you have visited, you would have noticed that some websites prefer to ask you from which country you are from before changing the language and others prefer to ask you directly what language you wish to display the website. However, there is also a code that you can insert in a PHP file that will automatically detect the server that is being used by the visitor, and hence apply the changes in the language accordingly.
Is the text above written in your own language? i.e. if you are german, is it written in german or does it appear as english