*Note: This is an announcement date - we believe the actual launch was closer to spring 2015.Google Turning Its Lucrative Web Search Over to AI Machines (Bloomberg)FAQ: All About The New Google Rank Brain Algorithm (SEL) Google announced what was most likely a Panda data refresh, saying that it could take months to fully roll out.
(SER) The second phase of Penguin 4.0 was the reversal of all previous Penguin penalties.
This seemed to happen after the new code rolled out, and may have taken as long as two weeks.
Moz Cast detected a major (106°) spike on November 10th and another on the 18th.
Industry chatter was high during both periods, with some suggesting that the second spike was a reversal of the first update. Many people reported bad dates in SERPs during the same time period, but it's unclear whether this was causal or just a coincidence.
For search marketers, knowing the dates of these Google updates can help explain changes in rankings and organic website traffic and ultimately improve search engine optimization.
Below, we’ve listed the major algorithmic changes that have had the biggest impact on search.
November 10, 2016 Google Algorithm Update – Was It A Core Ranking Update, The Mobile-first Index Being Tested, or Both?
(GSQi)Was There A Google Search Update On November 10th?
(Moz) Multiple SERP-trackers and many webmasters reported major flux in Google SERPs.
Speculation ranged from an e-commerce focused update to a mobile usability update. Significant Google Search Algorithm Update Yesterday (SER)Google Brand-e Commerce “Update” causing fluctuations (Searchmetrics) Google's major local algorithm update, dubbed "Pigeon", expanded to the United Kingdom, Canada, and Australia.
Google would not confirm this update, and no explanation is currently available.