Not sure anyone has an answer to this but I better ask. I currently have two of my sites - a developed one, and an undeveloped one with just wordpress installed on the same server, under the same IP address. They are both indexed. I want to put the undeveloped one on a different server so linking from the developed one will count as a proper backlink, under different IP addresses. So I'm wondering, is there a time limit for Google to recognize the IP address of the new server after the change over or should I place the link from the developed site to the undeveloped within 4-5 days (the time it takes to crawl the site again?)? Edit: I could just assign different class C IP addresses but I don't think that counts for Google.