Archive for ‘Advanced SEO Topics’

PageRank Split Experiment

PageRank Split Experiment

One of the commonly circulated SEO theories is that links from pages with many outgoing links are not worth much. Dejan Labs team put this theory to a test in hope to find out what really happens.

The Experiment Setup

Number of domains involved: 3 (2 test domains referred to as “A” and “B” and a buffer domain used to bridge PageRank)
Test domain characteristics: Very similar domain format with slight variation.…

 

Rejuvenating Old Links

Rejuvenating Old Links

I’m pleased to announce that we’ve commenced another search experiment. We’re investigating the impact of link rejuvenation on page’s performance in search. More specifically, we’ll be changing the format of existing links to create new ones.

Background

When Google re-crawls a page and runs into a link which is slightly changed from the last crawl it will treat it as a new link*.…

 

Mind-Blowing Hack for Competitive Link Research

Peek-a-boo Links

Last week I presented a method for search result hijacking. The story got much coverage in the SEO community, perhaps due to the fact that Rand Fishkin’s authority pages were also compromised as part of our experiment. One thing I did not elaborate on in the original article was the peculiar way Google Webmaster Tools handle document canonicalisation.…

 

How I Hijacked Rand Fishkin’s Blog

Search Result Hijacking

Search result hijacking is a surprisingly straightforward process. This post will go over theory, test cases done by Dejan SEO team and offer ways for webmasters to defend against search result theft.…

 

Authorship: Messing Up Your Rankings

Your ranking data could be skewed since the introduction of authorship suggestions. In this article we investigate how this could happen.

Major SEO portals have recently covered the “hidden benefit of authorship” where users who return back to results after reading your article are presented with additional three articles written by you.…

 

Dispelling the Myth of Authorship Impact on CTR

I want to begin this post with its high-sounding title by bucking the trend regarding what the worldwide SEO community says and regarding what I generally claim. In a certain sense I am going against what I myself believe, but that is precisely the point: “What we believe in and our general convictions cannot be applied to SEO or to data analysis”.…

 

The Future of Search: Our Window to Knowledge

Future of Search

The human thirst for knowledge is an unquenchable one. A desire that is limited by the constraints of time, with volumes and volumes of data to consume, and only one lifetime to absorb it all. An index in at the back of a book, the Dewey Decimal System and the mighty Google: all created to satisfy the need to divide the infinite mound of information, to locate the proverbial needle in the haystack.…

 

How Bounce Rate May Affect PageRank

By factoring in bounce rate data in calculation of PageRank values, Fabien Mathieu and Mohamed Bouklit create a new and enhanced ranking algorithm.

Back PageRank

 

Google Plus SEO Audit

Update: 8 January 2013

Somebody at Google has decided to use more rel=”nofollow” throughout Google+ and here’s an example:

nofollow-plus

URL within the post is nofollow, comment URL is nofollow, comment poster URL is nofollow (that was always like that) and the shared post URL is also nofollow.…

 

Small-Scale CTR Impact on Search Results

We tested the influence of small-scale click-through-rate on position of two pages on two new domains in Google. Two freshly registered domains (A & B) were used.

What did our test involve?
1. Search Google for “keyword”
2. Click on domain B in results.…

 

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