OK, I have a link from a domain, but this site also has a huge number of sub domains as the site has another URL for every country of the world.\ If I'm able to place an add on the domain I get the link fine. What if I get a link on the sub domains, will google acknowledge this link?
ex. This is the domain: http://www.example.com This is the sub domain: http://southafrica.example.com.
I'm not too sure I even explained this right, but I'm hoping you guys are so brilliant, you'll get what I'm trying to say.
[edited by: encyclo at 1:02 am (utc) on July 30, 2008] [edit reason] switched to example.com [/edit]
Inspect the sub-domain itself for backlinks,etc and be sure it's established independently of the root domain. In situations like this I tend to discount the value of their PageRank unless there is evidence to prove it's earned and not inherited.
I recently introduced a couple of sub domains on an existing site, with each sub domain having its own unique IP address. Based on comments here in WebmasterWorld, I was expecting to see the sub domains show up as individual sites.
Google Webmaster Tools shows all links from the sub domain pages as being internal links within the main site. So it would seem that sub domains are no longer considered to be a separate site with external links.