Many of you may have similar sites aimed at different countries, some of which may even be in the same language, such as separate English sites for the UK, North America and Australia. But how do you tell Google which site is for which country, and that these aren’t duplicate pages which it could find confusing?
The answer is the “hreflang tag”, another one of those self-explanatory labels which only web developers could devise. The hreflang tag can be applied whether you use www.mysite.com/fr, www.mysite.fr or fr.mysite.com. Google is keen to support the tag, so it’s definitely worth applying.
For more information, take a look at this excellent guide to the hreflang tag on the Branded3 blog.