Silver Strike

What's Page Rank ?

In brief Page Rank may be a "vote", by all the other pages on the Net, concerning how important a page is. A link to a page counts as a vote of support. If there's no link there's no support (however it's an abstention from voting rather than a vote against the page).

How is Page Rank Used?

Page Rank is one in all the ways Google uses to work out a page's relevance or importance. It is solely one half of the story when it involves the Google listing, but the opposite aspects are mentioned elsewhere (and are ever changing) and Page Rank is fascinating enough to deserve a paper of its own.

Page Rank is additionally displayed on the toolbar of your browser if you have put in the Google toolbar (http://toolbar.google.com/). However the Toolbar Page Rank solely goes from zero - 10 and looks to be one thing sort of a logarithmic scale:

Toolbar Page Rank:

(log base ten)   Real Page Rank
0                                            zero - ten   
one                                          one hundred - 1,000
a pair of                                        one,000 - 10,000
three                                       ten,000 - 100,000
4                                          and therefore on...

We tend to can't grasp the precise details of the dimensions as a result of, as we tend to'll see later, the maximum PR of all pages on the net changes each month when Google will its re-indexing! If we presume the size is logarithmic (though there's solely anecdotal proof for this at the time of writing) then Google might simply give the highest actual PR page a toolbar PR of 10 and scale the remainder appropriately.

Conjointly the toolbar sometimes guesses! The toolbar usually explained a Toolbar PR for pages I've solely simply uploaded and can't possibly be within the index however!

What appears to be happening is {that the} toolbar looks 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 incorporates a Toolbar PR for that parent then it subtracts 1 and shows that because the Toolbar PR for this page. If there's no PR for the parent it goes to the parent's page, however subtracting two, and thus on all the way up to the root of your site.  If it cannot find a Toolbar PR to display in this method, that is if it does not notice a page with a true calculated PR, then the bar is greyed out.

Note that if the Toolbar is guessing during this method, the Actual PR of the page is zero - though its PR can be calculated shortly after the Google spider 1st sees it.

PageRank says nothing concerning the content or size of a page, the language it's written in, or the text used in the anchor of a link!

Definitions

I've started to use some technical terms and shorthand during this paper. Now's as smart a time as any to outline all the terms I am going to use:

PR:     Shorthand for PageRank: the particular, real, page rank  for each page as calculated by Google. As we'll see later this may range from 0.15 to billions.

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

Backlink:     If page A links out to page B, then page B is claimed to own a "backlink" from page A.

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