The Google Webmaster Blog announced a significantly large change to how Google Webmaster Tools classifies subdomains.
Prior, subdomains would be considered separate sites and thus a link from a subdomain would be considered an external link by Google, in Google's reports. Today, Google is changing that and now considering those links internal links.
So when I link from forums.seroundtable.com to www.seroundtable.com, that is no longer a link from an external domain, it is a link from an internal domain.
Prior, subdomains would be considered separate sites and thus a link from a subdomain would be considered an external link by Google, in Google's reports. Today, Google is changing that and now considering those links internal links.
So when I link from forums.seroundtable.com to www.seroundtable.com, that is no longer a link from an external domain, it is a link from an internal domain.