Google Pagerank is an algorithm used by google that assigns a numerical weighting to each element of a hyperlinked set of documents, such as the World Wide Web, with the purpose of “measuring” its relative importance within the set. Today the PageRank index provides only one of many in the algorithm that ranks Web pages in search results from Google.
The basic principle is to assign a value (score) to each page. Google assigns a numeric weighting from 0-10 for each webpage on the Internet. In other words, a page can have a PageRank even more important than the number of PageRanks pages that link to it. The page rank of your site is determined by the links to your web site. Each time somebody adds a link to your web site, Google interprets this as a vote for your site. The more links you have to your site, the more votes you get.
Not all links are counted by Google. For instance, they filter out links from known link farms. Some links can cause a site to be penalized by Google. They rightly figure that webmasters cannot control which sites link to their sites, but they can control which sites they link out to. For this reason, links into a site cannot harm the site, but links from a site can be harmful if they link to penalized sites. So be careful which sites you link to. If a site has PageRank 0, it is usually a penalty, and it would be unwise to link to it.
Improving your PageRank isn’t easy – how are you going to get other, more popular web sites to link to you? The most effective method is to not get too caught up in PageRank, but instead focus on offering great content on your web site. And if your site does have interesting and regularly updated content, other sites are going to want to link to you, and you know what that’s going to do to your PageRank!
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