Welcome to the Q&A Forum

Hi. Normally changing the content but not the URL via scripts is not a good idea in International SEO. A good example of this use is Dropbox, which geolocalize different languages but does not change the URL of its homepage, which remains always dropbox.com. Regarding Sensacine.com (a site I know well, because I live in Spain), the success it has also in Spanish Latin America is quite surely due to its very good link profile, and surely not to meta tags like: because these kind of geotargeting metas are not taken into consideration by Google, but only by Yahoo! and Bing (and also for them they are not the most relevant geotargeting signals).

People, I can´t use Moz. It doesn´t crawl my site because of the 602 error. Can someone help me? If I don´t crawl it this week I will need to look for another tool. Thanks.

Pablo - Yes, it would be better to have all of your domain authority under one main domain name, instead of spreading it thinly using subdomains. Thanks, -- Jeff