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"I spotted a very interested comment by Google's head of search spam, Matt Cutts at Hacker News.  The obvious comment is that Matt Cutts outs thecupcakeblog.com as being impacted in a negative way by the Panda algorithm.  More shocking to me, based on my conversations with Google search quality people is that Google knows clearly if a site is impacted by an algorithm or not.In August, Google launched the manual action viewer, mostly to appease webmasters who want to know if their site has a penalty or action.  But this only covers manual penalties, issued by Google representatives with the click of a button. It does not include details if the site was hurt by an algorithm such as Panda or "^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.seroundtable.com/google-algorithmic-penalty-17703.html>