What do you mean by saying that the visitor's language is automatically detected and the right language version of my website is displayed?

Well, the visitor's language is automatically detected by checking the preferences in his web browser. Many of you do not realize that in your web browser, there is a setting which determines your preferred languages.

Now it's a different thing than the language version of the browser itself - that is an English Internet Explorer might be set to prefer e.g. Chinese and German to other languages.

If there's no page in the visitor's preferred language, there's a smart algorithm to select a different - available - version.

Anyway, the user can alwas change your site's language version to his preferred one using the option placed on the top of your page.