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« on: January 29, 2009, 11:41 AM »
First, signup and use Googles Webmaster tools. This is the way the Google will communicate to you if there is an issue with the website.
Why it would go to 0 most likely has nothing to do with inbound links as it really only takes one to get a pagerank of at least 1.
Reason why a zero:
- Your site was hacked and is filled with hidden spam text. A common hack is to not change the look of the site and only include links in comments and hidden text - hard to spot unless you think you've been hacked and check the code. Google Webmaster tools will tell you when this occurs
- You are doing some black-hat SEO techniques and have been caught. If this this is the case then you need to remove all the techniques and beg Google to forgive you
- You are linking to many, many bad neighborhoods. Since you control outbound links, Google will penalize for linking to bad websites.
- The page you are looking at, with a zero, recently changed its page name and therefore has no pagerank stored. PageRank is tied to a page and not a domain. This means that if a new page is added to your site it start at zero and usually gains its first Pagerank from your internal linking strategies.
- You actually have a pagerank but when you viewed it, it was querying a data center that was not responding.