Google PageRank - Definition, History and Development

Hi Everybody,
The basic idea of the algorithm PageRank is that incoming links on a website should be considered a recommendation. The more links to a page has the more important the page is considered. The scale of PageRank ranges from 0 to 10, with the value of 10 represents the upper end, and very few Web pages have a PageRank of 10. It receives a page with many incoming links on a higher PageRank, and the higher the PageRank of link page, the higher the value of the receiving end's link page. The idea is that a link (recommendation) from an important page (higher PageRank) is worth more than a page which itself has a low PageRank.

The concept of PageRank was developed by Larry Page and Sergey Brin at Stanford University and that design led to the founding of Google by both. They were the first to display results almost exclusively due to the PageRank of sorted pages. That represented a revolution, since up to this time, the Internet search pages were only then evaluated by how often the keywords in the text and in the meta tags occurred.

PageRank was an innovation where the webmaster could no longer easily manipulate the positions in the search results pages of their web pages just by repeating certain keywords. This novel method of valuation also attributed to the great success of the search engine Google, because much more relevant search results were delivered. But it turns out that this method of evaluation of a web page could not remain as the sole criterion, because link exchange, link buying and blog entries also affects PageRank.

PageRank is still used for the assessment of sites by Google, but with much less weight than before. Meanwhile, Google stated that the collation of results happen after more than 100 different assessment criterion are implemented, still PageRank plays a very important role.