My client has a site that supports different languages in the following structure:
www.domain.com - English version
www.domain.com/IT - Italian version
www.domain/DE - German version
etc....
I have set the languages up within Webmaster Tools but do I need to set up the canonical tag for all internal pages as they are basically the same but just in a different language i.e.
www.domain.com/index.php is the same as www.domain.com/DE/index.php but in a different language.
Thanks
