How to Check Google Page Rank & What is the PR?

What is Google Pagerank Algorithm?

PageRank is a numeric value that represents how important a page is on the web. Google figures that when one page links to another page, it is effectively casting a vote for the other page. The more votes that are cast for a page, the more important the page must be. Also, the importance of the page that is casting the vote determines how important the vote itself is. Google calculates a page’s importance from the votes cast for it. How important each vote is is taken into account when a page’s PageRank is calculated.

Your web pages PageRank is determined by only three factors:

The number of pages linking to your page.
The PageRank of the pages linking to your page.
The total number of outgoing links from the pages linking to your web page.

How is PageRank calculated?

To calculate the PageRank for a page, all of its inbound links are taken into account. These are links from within the site and links from outside the site.

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

That’s the equation that calculates a page’s PageRank. It’s the original one that was published when PageRank was being developed, and it is probable that Google uses a variation of it but they aren’t telling us what it is. It doesn’t matter though, as this equation is good enough.

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.

Here’s Google Page Rank Update Schedule:

Update 1 – January 30 to February 4
Update 2 – June 30 to July 4
Update 3 – 30 September to 4 October
Update 4 – 31 December to 5 January 2014