In various web forums, people sell domains with google page rank. High PR domain names fetch hundreds of dollars. I’m not sure if this is a good investment because you usually lose PR in the next google update. At any rate, people love buying domain names with PR. If you are interested in buying PR domains, you have to watch out for the fake or forged PR. You can use sites like checkpageranking, validrank, and digpagerank to check for PR. Don’t just rely on these tool tho.
You should use common sense when you are purchasing websites or domains. If a site doesn’t have any backlinks but has a high PR, then you know something is wrong. Check the age of the domain and check to see if the domain or website is in google’s cache. I’ll list 4 methods for checking google page rank. These are steps you should take before buying a domain just for the PR.
Check for PR validity by using different tools. Validrank, digpagerank, and checkpageranking are good ones. Don’t rely on just one tool. Check all three. For whatever reason, one site can show a valid page rank when another says it’s fake.
This method is even more reliable. Go to google and in the search bar, type in “info:domain.com” (or dot whatever) If the domain URL comes up as the only result, then the PR on that domain is valid. If a different URL pops up, that means that the PR is forged. The page rank is from that site.
This method is one more step. Check the Google cache. Go to google and in the search bar, type in “cache:domain.com” (or dot whatever) If a different domain is cached, the PR is probably not real.
You can use google and all of these various tools, but the best way to check is by using your common sense. If a 1 month old domain has a valid PR5 then something must be wrong. Even if the PR checks out, you will probably lose that precious PR in the next update. Check for backlinks to justify the PR of that domain.
Buying PR domains can be a good way to launch a new site. I would still rather pick an aged domain over a PR one, but to each his own. Whenever you are buying something online, you should always be careful. There are a lot of questionable webmasters online, especially in the “make money online” niche. I think scammers get away with things because there are so many noobies who don’t know how the game is played. Be careful and be selective when you decide to trust people online. Noob out!