Google Page Rank

Google Page Rank..the green bar on Google tool bar ranking the web page by giving it points from 10. Ever wonder what is its purpose? Why it is so important(IT IS IMPORTANT)? Why one want 10 out of 10 (OK its a real tough task nearly impossible) or want an increase in it? These and many more questions about Page Rank are constantly raised by many peoples and SEO’s too. Here is a “summary”(not the same article) of most comprehensive study originally done by smashing magazines about Google Page Rank. The most kool thing about this article are the tools that provided with the article about Page Rank. Read it and see that what you know about Page Rank till now is rite or…?

What is PageRank?
It is one of the factors that Google Use for measuring importance of a page. Moreover it has nothing to do with page quality or topic relevancy. Its only measure the importance of a page by counting how many links that page got.

“Google uses many factors in ranking. Of these, the PageRank algorithm might be the best known. PageRank evaluates two things: how many links there are to a web page from other pages, and the quality of the linking sites. With PageRank, five or six high-quality links from websites such as www.cnn.com and www.nytimes.com would be valued much more highly than twice as many links from less reputable or established sites.”

By Google Librarian Central

How Does PageRank work?
Ok this thing is still under study (obviously by SEO’s) How that things work. An equation is derived to calculate how it works or how it ranks a page. Here it is

PR(A) = (1-d) + d(PR(t1)/C(t1) + … + PR(tn)/C(tn)).

That’s the equation that calculates a page’s PageRank. In the equation ‘t1 - tn’ are pages linking to page A, ‘C’ is the number of outbound links that a page has and ‘d’ is a damping factor, usually set to 0.85.

One thing is also said that If a page got PR 10 and it got only one link on it than this link will get the wholw link juice and get a fair amount of PR too. So having a link on a page with greater Pr is important but number of links on that page is also important.

Since Google Page Rank is logarithmic in its calculation so each Page Rank level is progressively harder to reach. If it takes 10 steps to reach for PR1 than it will take 25 steps to reach for PR 2. Page rank update after every 3 or 4 months. Here is another interesting thing about Page rank is..

“PageRank is based on incoming links, but not just on the number of them. Instead PageRank is based on the value of your incoming links. To find the value of an incoming link look at the PR of the source page, and divide it by the number of links on that page. It’s very possible to get a PR of 6 or 7 from only a handful of incoming links if your links are “weighty” enough”

FACTORS EFFECTING AND NOT-EFFECTING PAGE RANK

• Inbound Link
• Adding Pages Decrease Page Rank
• Decrease in Page Rank of Pages that have link of your website
• Links from and to high quality related sites
• Content updates don’t improve PR
• Content is not taken into account when PageRank is calculated
• Page Rank doesn’t consider site age, backlink relevancy and backlink duration.
• Wikipedia Links don’t improve Page Rank after they implemented NO FOLLOW TAG .
• Listing in DMOZ and Yahoo! doesn’t give your site a special PR Bonus
• .edu and .gov-sites still contraversal
• Links marked with nofollow-attribute don’t contribute to Google PageRank.
• Links from one page to itself don’t improve Page Rank
• Bad incoming links don’t have impact on Page Rank
• Dangling links(links that point to any page with no outgoing links) don’t have impact on Page Rank.
• Efficient internal linking
• Anchor text
• Links from top ranked pages in Google

GOOGLE PAGE RANK RELATED TOOLS

All Pages PR
All Pages PR of your website in simple text format

Page Rank From Different Data Centers
Page Rank on different 30 data centers plus genral info about website

Page Rank Calculator
A calculator to determine share of Page rank

Live Page Rank
See the Live and current Page Rank for a website.