Sunday, January 10, 2016 has seen significant SERP activity. So much, in fact that Christoph Cemper of LinkResearchTools.com and Barry Schwartz of SEroundtable.com believe that the latest Google Penguin 4.0 update has started. However, Barry is taking the more conservative approach as to not confirm anything until we have confirmation from Google.
It is hard to believe it is not Penguin since we have not seen such activity in the SERPs since the 2014 Pay Day Loans update.
Is it Penguin 4.0? Or Some Other Massive Update?
Is this really Penguin 4.0? Time will tell. John Mueller confirmed to me on Twitter, though, that they have no such confirmation yet. I am sure that John or Gary will let the webmaster world know when the time is right and they have full confirmation that this is indeed Penguin 4.0.
I would watch your sites and just wait for confirmation from the horse’s mouth before doing anything rash.