The comparison is indeed telling. A page that was added a few weeks ago attained the highest PR in the site. While the home page with most of the back links stayed at 4. The reason is quite obvious if you examine the actual pages. The home page is donating it’s PR to a lot of pages, while the new events page has only 3 outgoing links(in addition to the common links). This behavior is predictable, if we apply the “backrub” algorithm.

Happenstance, you say? Let’s look at another site, with less contents and a different “offer”/e-commerce pricing model. The common feature is that the navigation structure is exactly the same.

1. Tickets Website's Home page , PR 3 2. New Tickets Event Page , PR-5

Coincidence, you say? Let’s look at a third site

1. Click Fraud Website's Home Page —PR-4 2. Click Fraud Website's Internal Page —internal pages like click fraud with no link to Zaralyzer but lots of links from external sites, PR-5

In conclusion, even the most trivial changes in site navigation structure can cause major changes in how the search engine view your pages. For a free Google Page Rank Improvement Consultation on how you can improve your site structure.

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