Fake Page Rank Checker
The PageRank of a web site can be faked with a combination of a 301 redirect and cloaking. With this tool, you can check the validity of PageRank.
If Pagerank color's number is:
Gray=Not in cache or use www in domain
Blue=Unable to verify valid or fake Pagerank
Also you can view and compare Google's domain info. If there are no results or if the returned URLs don't match the original URL then it's likely that the PageRank has been faked. If Google returns only one URL for the query and if the URL is the same as the checked URL then the PageRank is valid (results could be different depending if the site is indexed using www in the domain).