When did Google include display results per page into their ranking algorithm?
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It looks like the change took place approx. 1-2 weeks ago.
Example: A search for "business credit cards" with search settings at "never show instant results" and "50 results per page", the SERP has a total of 5 different domains in the top 10 (4 domains have multiple results).
With the slider set at "10 results per page", there are 9 different domains with only 1 having multiple results.
I haven't seen any mention of this change, did I just miss it?
Are they becoming that blatant about forcing as many page views as possible for the sake of serving more ads?
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This has been happening for a while now. We use rank tracking with 100 results per page and the ranking results are usually different than comparing it to 10 results per page.E.g. 10 results per page ranking = 19, 100 results per page ranking = 33
First time we noticed this was back in March 12'.. although it could have started earlier than that.
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Interesting. Have you guys seen an increase in disparity between the two methods over the last couple of weeks?
I don't use the 50 and 100 count pages for rank tracking, but I use them for prospecting and analysis. I definitely started noticing the increase in domains with multiple results about two weeks ago, but it's possible I just didn't pay close enough attention before that.
What really sparked this question was the fact that I found a SERP in which the top 12 results were all from a single domain. I thought I was hallucinating.
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When I built my rank tracker I was originally going to get 50 per page, then noticed the results are much different from 10 results per page. That was at the beginning of March - not sure about before that time.
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In case you haven't seen it, check out this post
http://www.seomoz.org/blog/the-bigfoot-update-aka-dr-pete-goes-crazy
Talks about domain diversification and ranking fluctuations as of recent.