Why? – Page Rank

Posted on January 9, 2010
Filed Under Internet Marketing - Promotion | Leave a Comment

What’s Page Rank ?

Briefly Page Rank is a “vote”, by all the opposite pages on the Web, regarding how vital a page is. A link to a page counts as a vote of support. If there is no link there is no support (but it’s an abstention from voting instead of a vote against the page).

How is Page Rank Used?

Page Rank is one in all the methods Google uses to determine a page’s relevance or importance. It is only one part of the story when it comes to the Google listing, however the opposite aspects are mentioned elsewhere (and are ever changing) and Page Rank is interesting enough to deserve a paper of its own.

Page Rank is additionally displayed on the toolbar of your browser if you’ve got installed the Google toolbar (http://toolbar.google.com/). But the Toolbar Page Rank only goes from 0 – 10 and appears to be one thing sort of a logarithmic scale:

Toolbar Page Rank:

(log base ten) Real Page Rank
zero zero – 10
one one hundred – 1,000
a pair of one,000 – ten,000
3 ten,000 – one hundred,000
four and therefore on…

We have a tendency to cannot grasp the precise details of the dimensions as a result of, as we have a tendency to’ll see later, the maximum PR of all pages on the internet changes each month when Google does its re-indexing! If we tend to presume the scale is logarithmic (although there is solely anecdotal proof for this at the time of writing) then Google could simply offer the highest actual PR page a toolbar PR of 10 and scale the rest appropriately.

Conjointly the toolbar typically guesses! The toolbar often illustrated a Toolbar PR for pages I’ve only simply uploaded and cannot presumably be within the index nonetheless!

What looks to be happening is that the toolbar appearance at the URL of the page the browser is displaying and strips off everything down the last “/” (i.e. it goes to the “parent” page in URL terms). If Google contains a Toolbar PR for that parent then it subtracts 1 and shows that because the Toolbar PR for this page. If there is no PR for the parent it goes to the parent’s page, but subtracting 2, and so on all the manner up to the foundation of your site. If it can’t find a Toolbar PR to show during this manner, that’s if it does not notice a page with a real calculated PR, then the bar is greyed out.

Note that if the Toolbar is guessing in this means, the Actual PR of the page is 0 – though its PR can be calculated shortly once the Google spider initial sees it.

PageRank says nothing regarding the content or size of a page, the language it’s written in, or the text employed in the anchor of a link!

Definitions

I’ve started to use some technical terms and shorthand in this paper. Now’s as good a time as any to define all the terms I will use:

PR: Shorthand for PageRank: the actual, real, page rank for every page as calculated by Google. As we have a tendency to’ll see later this will vary from 0.15 to billions.

Toolbar PR: The PageRank displayed within the Google toolbar in your browser. This ranges from 0 to 10.

Backlink: If page A links out to page B, then page B is claimed to have a “backlink” from page A.

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