I read a similar topic at post18268.html
I am using drupal and have a enterprise version of gtranslate. I want to use hreflang and would like to know what's the correct way to do it? I want to confirm that what I did is right. I added some code in the html.tpl.php which displays all alternate urls for the page
if I am on a page as http://example.com/about_us then the code should be
<link rel="alternate" hreflang="en" href="http://example.com/about_us">
<link rel="alternate" hreflang="es" href="http://es.example.com/about_us">
<link rel="alternate" hreflang="de" href="http://de.example.com/about_us">
and so on for all languages.