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Archive For: Research

SEO Test: Sending Mixed-Signals to Google

This is an SEO experiment designed to ascertain whether it is possible to confuse Google into noindexing your pages with combined use of rel=”canonical” and “noindex”.

Read on to find out how we intend to do it and how you can help the experiment.…

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Link Disavow Statistics

TL;DR: We’re collecting Google’s link disavow tool data to learn more about the type of disavowed pages and domains through statistical analysis. Since Google wouldn’t release any stats on the tool I say, it’s time we start collecting and crunching our own data.…

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What is Google+ up to now?

I have a hunch about Google+ and its impact on Google’s link graph and the search algorithm in 2013. At this point I struggle for solid evidence but have set up a few antennas and observing any new developments.

That said, I have observed a few subtle adjustments to sharpen up the architecture of Google+, mainly through use of rel=”nofollow”.…

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Blind SERP Click Experiment

This SEO experiment is designed to test people’s clicking preferences once textual content is removed and replaced by plain outlines. Our participants were asked to open the page and nothing else. Some of them decided to click on specific results and the outcome is visible below.…

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Conversations With Google

conversations with google

This article is also available in PDF format and as a Torrent

Google is undoubtedly the world’s most sophisticated search engine today, yet it’s nowhere near the true information companion we seek. This article explores the future of human-computer interaction and proposes how search engines will learn and interact with their users in the future.…

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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.…

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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*.…

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Impact of Follower to Following Ratio on Google+

follower experiment header

The objective of this experiment was to determine whether there is a connection between the ratio of “circled” and “in circles” and page position in internal Google+ search. Often you will find that very popular pages follow only a handful of others and they tend to rank high on Google+ searches.…

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