ICT magazine

Google PageRank - it’s what all web designers, web masters, and bloggers covet. Despite this desire for a higher number, an aura of mystery surrounds both Google and it’s PageRank - and for good reason. Google’s inner-workings is a closely guarded secret. However, back when Google first started they published the equation that calculates PageRank. They most likely use a variation of that equation, but the original will be good enough for our exploration purposes.The Formula:
PR(A) = (1-d) + d(PR(t1)/C(t1) + … + PR(tn)/C(tn))*
where t1 and tn is the pages linking to Page A, C is the number of outbound links on Page A, and d is the ‘damping factor’ - which is normally 0.85.

If you’re mathematically challenged (like me) - here’s a simpler way of looking at it:
Page A’s PageRank = 0.15 + 0.85 x (a share of the PageRank of every page that links to it)

Basically, get links - get PageRank.

But there’s more to it than just links - so let’s dive into that.

When Page B links to Page A, Page B is ‘voting’ for Page A. Page A’s new PR is Page B’s PR x 0.85 + 0.15.
If Page B and Page C links to Page A, then Page A’s new PR is Page B’s x Page C’s x 0.85 + 0.15.

Simple, right?
Well, it seems so - but there is more to consider.
To keep this post manageable, I’ll speed through them.

If you look closely at the equation, you’ll notice that the worth of the link is divided by the quantity of links on that page. Thus, the more links on one page, the less they’re worth.

Google’s PR system isn’t the smartest. For example, http://plainbeta.com, http://www.plainbeta.com, and http://plainbeta.com/index.html are different pages to a crawler.
(So standardize your pages!)

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