PRLog - May 28, 2012 - Google’s PageRank is a measurement of a page’s worth based on the quantity and quality of both incoming and outgoing links. The concept behind PageRank is that each link to a page constitutes a vote, and Google has a sophisticated and automated way of tallying these votes, which includes looking at a vast universe of interlinking pages. Google awards PageRank on a scale of 0 to 10; a PageRank value of 10 is the most desirable and extremely rare. Like the Richter scale, the PageRank scale is not linear, so the difference between 4 and 5 is much greater than the difference between 3 and 4.
More often than not, pages with high PageRank have higher Google rankings than pages with low PageRank. And therein lies the link obsession. Throughout the SEO community, the scrambling for, trading, and even selling of links became such a focus over the past several years that Google modified its system and began to devalue certain kinds of links. It’s widely accepted, for example, that links from content-deficient “link farm”websites do not improve a page’s PageRank, and getting a link from a page with high PageRank but irrelevant content (say, a popular comic book site that links to a forklift specifications page) won’t either. Google now displays updated PageRank values at infrequent intervals to discourage constant monitoring. It’s good to get links to your site, but obsessive link building to the point of excluding other areas of SEO is a waste of time. Keep a holistic head on your shoulders and remember these points:
- Google’s ranking algorithm is not based entirely on inbound links.
- A high PageRank does not guarantee a high Google rank.
- A PageRank value viewed today may be months old.
PageRank is still a fairly good indication of how Google regards your website’s pages, and you’ll learn how to gather your own measurements in Your SEO (http://novice2advanced.com/