I know the obvious 301/300 redirect invalid pagerank jive, just wondering if the following site is invalid for pr. pagerankbuster.com Code (markup): The issue is with a subdomain I had, I've redirected all traffic from the subdomain to the main domain. The main domain was getting all inbound links but had a link to subdomain and subdomain got all PR from inbound links. Obviously I didn't like this and redirected all traffic and pages to main site and got rid of subdomain. Perhaps the next PR update will fix everything when I get remove the subdomain and redirects completely. A little insight is greatly appreciated. ps Not sure if this is the right place to put this thread......
If you 301 redirected each of the sub-domain's URLs to a URL on the main domain, the PR from the subdomain's URLs will DEFINITELY be passed to the target URLs of your 301s on your main domain. The key is to redirect each URL on the subdomain to a URL on the main domain whose content most closely resembles the content from the subdomain's URL. The reason is so that the link text previously used to link to the subdomain URL will make sense when the 301s are discovered and the new URL is given credit for the link text. Basically, you have to wait on Google to crawl every URL that linked to your subdomain's URLs, follow the links from those sites to the subdomain, detect the 301, move credit from the link from the old subdomain URL to the target URL of the 301. You also have to wait for them to recrawl your site several times during and after this transition period so that they can re-calculate the PR of all main domain URLs. So your rankings will likely suffer a bit during transition but they should come back in 2-3 months (sooner if your site and the sites that link to you get crawled very frequently - like daily instead of monthly).