At the same time, those who support page rank would say that the most successful sites are those with the highest page rank. It is hard to argue with this fact. Google, Wikipedia, and About.com have page ranks which are between 9 and 10. This websites get millions of visitors a day, and may cost thousands of dollars for you to advertise on them, if they even allowed it. Because of this, page rank does play a factor in the success of a website. Page rank can be defined as a measurement of the importance of a page. On the Google Toolbar the page rank will range from 0 to 10.
Brand new sites will have a page rank of 0, while established websites like Wikipedia may have a page rank of 9. Many webmasters feel that page rank gives them a good idea of how important a site is. In a sense, page rank does play an important part of SEO. It is obvious that websites like Wikipedia are well optimized. However, while page rank is important for search engines, it has little to do with internet marketing. Having a high page rank doesn't guarantee that your site will generate sales. It only says that a particular page on your site is important.
Another problem with page rank is that it can be manipulated. There are a number of sites out there which show a page rank of 7 which are not a PR7. A good way to tell if page rank is accurate is to look at the age of a site. Very few sites have a page rank of 7 or higher which are only a year old. Unless the webmaster spent millions of dollars on the site, it is likely that the page rank is fake. Many webmasters sell text links based on page rank, and this has become a large industry, However, Google frowns on this type of behavior.
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