Controlled Experimentation + Correlation Data Gives Solid Evidence

I am always excited to hear that our internal testing using controlled experimentation matches up with that of those doing correlation studies, like the great work coming out of SEOMoz. Most recently, Rand Fishkin posted a great piece on correlations between numerous ranking factors and outcomes in both Google and Bing. One of the more “surprising” pieces of data revealed in this correlation study was the relationship between the .org extension vs. .net/com/gov/etc. It seems that in both Bing and Google, there is a slight bias towards the .org TLD. Interestingly, back in 2008 before SEOMoz had built such a great data set to perform correlation studies like this, we created a controlled experiment to look at potential Top Level Domain Analysis. We...

301 Redirects Can Pass Anchor Text

One of the questions we often receive and has been discussed quite a bit is whether 301 redirects actually pass on any anchor text. This is an important question, as much of the web’s new link graph uses URL shortening style services. So, we set out to do a simple test… Get a page ranked for a non competitive term using only 301 redirects. It is important to note here a few things regarding the scope of this study. This was repeatedly effective This did not test 301 redirecting an old page to another We cannot measure whether or not there is any depressive adjustment made because it is a 301 redirect, merely that the effect does exist. There very well may be special cases where Google does not pass anchor text through a 301 The experiment was quite...

New Free SEO Tool – Google Double Listing Demystifier

The brand spanking new Google Double Listing Demystifier helps you identify the actual ranking of individual pages in the top 10 when there is a double listing present. If two pages from the same domain occur in the top 10, Google will automatically insert the second listing directly under the first with an indent. While this makes it easy to find pages from the same domain, it makes it far more difficult to determine what the actual rank of the second page is. This simple tool will help demystify the double listing by identifying what the actual rank of those individual pages are. This can be incredibly valuable as it will allow you to know whether or not your or your competitor’s second page listing is vulnerable because it is actually in position 10, or...

Wow – PageRank Recovery Tool Usage…

SEOMoz just updated their API usage dashboard and it was amazing to see the jump caused by our new PageRank Recovery Tool – we have had over 440,000 rows returned on top pages alone this month. No tags for this...

New Link Atrophy Diagnosis Tool

Hey folks, I am going to do my best to keep these SEO tools rolling out this week in advance of Pubcon Dallas, where I will be giving a solo session on advanced white hat techniques. The latest tool is a link atrophy diagnostic tool. Link Atrophy is the rate at which links you acquire disappear. If your site depends on links that quickly come and go, Google may not have ample time to index, identify and attribute links towards your PageRank and ultimately your authority. Considering growing beliefs among SEO’s that the longevity of a link’s presence increases its value to the target page, it becomes increasingly important that you rely on permanent link placements unlike some techniques (press releases, for example) that only generate temporary links....

New PageRank Recovery Tool

Every little while we decide to release some of our internal goodies into the wild, and this is going to be one of those weeks. Hopefully, in advance of the upcoming PubCon South, where I will be speaking on “Advanced SEO Tactics for Hyper-Competitive Verticals“, we will be able to release a lot of these tools. The first tool that I would like to proudly announce is what we internally like to call the PageRank Recover Tool. One of the most common sources of PageRank loss occurs when individuals like to your site using the wrong URL. Unfortunately, this not only causes users to land on a 404 Not Found page on your site, but it also wastes all of that good PageRank on a non-existent page. There are a lot of great tools out there to help you identify...

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