Revisited: Google penalties
It was only a few month ago that I already published a three-part series on the subject of penalties on this blog. Seeing that, with the help of the SISTRIX Toolbox, I am now able to show a few things more vividly and comprehensively than before, I want to take up a part oft that posting again. To be exact, I want to come back to the penalty that I called “Site-depreciation” in the past. This is when the rankings of nearly every keyword that can be found for a site will be set back. This penalty is usually also called the -30, -50 or -100-penalty, to illustrate the changes in position.For a part of the SISTRIX Toolbox we regularly query the first 10 resultspages for about a quartermillion keywords. Besides such exciting things as tracing the rankingdevelopments or calculating the visibilityindex, we can also use these data to analyze on which resultspage the hits for a domain can actually be found. Besides the possibility for a nifty flash-animation, this also gives us a first impression of how “healthy” the particular domain is. The norm should be a result that is similar to this one belonging to the University in Bonn: 10 resultspages and the ranking-distribution is roughly uniform. What is interesting are deviations from this model. Those who know the clickrate with dependence on position by heart know that it decline extremely quick – arround the thrid page visitors will rather be a coincidence. A pretty example for a perfect distribution is – quite as expected – Wikipedia: the encyclopedia is on the first page for more than 50 percent of all found keywords. To get back to the subject of penalties, here we have the typical distribution for a site that I believe has received a Google-penalty:


[update 11.11.] Gerald made the whole thing come to life at seo.de in an example by means of chronological progression, pretty animation.
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