We can’t directly measure how PageRank flows

[zihadhasan019]

So we can only infer results. This needs to be acknowledged when interpreting test results. That said, we also can’t directly measure objects outside our solar system and this solution of inference has become the basis for modern Astronomy. (If it is good enough for NASA, it is good enough for SEOmoz ;-p) The Experiment We chose the following five PageRank sculpting methods to test: Rel=‘nofollow’ - The standard mechanism for nofollowing a link.


Consolidating low priority pages. You can read more email database uk about link consolidation here. Iframe - Include a standard link in an iframe that is blocked via robots.txt or meta robots so engines can't follow it. Javascript - An external Javascript file (blocked from robots) that inserts links into divs when the page renders. Control Case - Null test with standard links. Page Setup We then built five standardized websites that used these different methods (one used iframes for its test links, another one used Javascript for its test links, etc.


And included one normal link with the anchor text of a phrase that was completely unique on the Internet. Each website in the experiment used the same template. Each keyword phrase was targeted in the same place on each page and each page had the same amount of images, text and links. The standardized website layout contained: Four Three pages per domain (the homepage and the keyword specific content pages) One internal inlink per page (Links in content) One inlink to homepage from third party site Six total outbound links.