Data on Google Vs Bing, et al and changes to sites.
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I am curious to know if anyone has any data that correlates site/page changes like content or Title Tag, H1, etc. and subsequent movement in rankings on Google and Bing and Yahoo?
The equation is for example: ABCSite.com/home-page/ makes a change to the H1 and H2 and one paragraph of content is changed. Over next 6 to 12 weeks changes in page rank for the 3 engines is tracked to see where it started and where it "stopped."
Obviously, there are more factors than individual algorithms in play here. An example of that would be that a significant number of sites will be indexed in Google by a dev and not in the others. We see this regularly. So, at least from a timing standpoint, different sites are entering/leaving the fray at different rates.
We are going to begin to track this but I would love to see any data already around or speak with anyone involved in such a study about what they found.
Thanks
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Hi Robert.
There's this article posed by Rand in June 2010:
Google vs. Bing: Correlation Analysis of Ranking Elements
And later that month there was this:
Bing vs. Google: Prominence of Ranking Elements
Would be interesting to see how/if this has changed.
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