Apr 13, 2007
Google Webmaster Tools and Page Rank Hoarding
Google's Vanessa Fox was interviewed by Rand Fishkin 12 April 2007. One of the items mentioned regarded Page Rank Hoarding and how the Google Webmaster tools showed incoming links.
So what is Page Rank Hoarding?
Page rank hoarding is where webmasters use the rel=nofollow attribute on their outbound links. If you use rel=nofollow on links, neither Google PR nor the link text value is passed to the target page. The Google Webmaster Tools incoming link tool shows many of the incoming links into a website. It shows far more incoming links than the Google Link:domain.com command. However, the Tools also show incoming links that have that rel=nofollow link on them. I note on some of my sites, that technorati.com links are listed, yet all the links are rel=nofollow.Google is aware of the issue, and may give more information about the incoming links such as whether the link is rel=nofollow / link hoarded. It would be nice to see the Google PR of the pages as well. It will be interesting to see how the tools develop.
2 Comments
Michael Brandon - Search Engine Optimisation - Aug 31, 2007
Hae MarketRaise, its not the formula for a websites PR, rather the formula for a pages PR. A pages PR is the function of all incoming links using the above formula.
But the above formula can also be slightly confusing. The question is, what is the Google PR of each page. The value is not just the numbers 0,1,2,3,...10 that are shown in the Google toolbar PR. Rather they are a compounding number for instance a multiplier of 6 for each PR.
Pagerank explained from iprcom.com, is a very good explanation of how Google PR is distributed between pages. It mentions a log factor of 10. The webworkshop's pagerank explained mentions 5-6 which is the commonly accepted value mentioned.
So a link from a PR8 page that has 100 links on it is not worth 8/100, but more like 6^8 / 100 = 16k. And that 16k is a high PR5 - (6^5= 7k, 6^6=46k).
And remember that the link:domain.com search on Google only shows a small number of the total inbound links. The Google webmaster tools show a far higher number, and yahoo also shows a more correct total.
marketraise - Aug 30, 2007
The Page Rank Of A Website depends solely on your inboud links.The PageRank of a website is calculated with the help of the following equation:
PR(A)=(1-d)+(PR OF LINK PAGE 1*D/NO OF LINKS IN PAGE1)+ (PR OF LINK PAGE 2*D/NO OF LINKS IN PAGE2)+.....+(PR OF LINK PAGE P*D/NO OF LINKS IN PAGE P).
Where A,is your website
D is a damping factor =0.85
link page 1,2...,P are the pages that has a link pointing to your website and can be found out by conducting a search on google with link:www.website.com.