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What is PageRank?

PageRank™ (which is TradeMark of Google), is a tool that Google invented to measure the importance of a page. The higher the PageRank, the higher the more important Google thinks the page is.

PageRank is displayed on the Google Toolbar. The screenshot below shows my technology blog's PageRank. The page on a site with the highest PageRank is usually the home page, as this is usually the page with the most backlinks and the most worked on page, as it is what visitors see as soon as they enter your site - usually. Below is an image of my blog's PageRank.

Christopher Roberts Technology Blog's PageRank

PageRank is determined by many different factors, including: backlinks (one of the most key), content freshness, domain age, page load time and many more.

There are many diagrams on the internet that try to explain PageRank, but I believe that the one I have included is the best in respects of the backlink element. Below is this diagram with an explanation.

PageRank Diagram

Most of the green faces are very small as they give away links, but are getting none in return. This keeps their PageRank low. Then we get to the reds, these are both quite big as they get some links from other big sites. The blue is big as it is receiving lots of links from big and small sites, but it also gives some away. Finally, the yellow face is really big as it only gives one link out, but receives severn in, and most of them are from already strong sites, like the blue.

Even though the blue and yellow have around the same amount of inbound links the reason the yellow is bigger, is because it has links coming from bigger sites, and it gives less links out.

Links: PageRank

Posted By: Christopher (Admin)
Date posted: 14th April 2010

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