Google Penguin Update History - Google Algorithm


Google launched the Penguin update in April 2012 to fight webspam in search results. This algorithm was introduced to decrease search engine rankings of websites that violate Google’s Webmaster Guidelines by using black-hat SEO techniques like link schemes or keyword stuffing.

Following are the Google Penguin Update History-
  1. Penguin 1 on April 24, 2012 (impacting around 3.1% of queries)
  2. Penguin 2 on May 26, 2012 (impacting less than 0.1%)
  3. Penguin 3 on October 5, 2012 (impacting around 0.3% of queries)
  4. Penguin 4 (AKA Penguin 2.0) on May 22, 2013 (impacting 2.3% of queries)
  5. Penguin 5 (AKA Penguin 2.1) on October 4, 2013 (impacting around 1% of queries)
  6. Penguin 6 (AKA Penguin 3.0) on October 17, 2014 (impacting less than 1% English queries). On December 1, 2014 Google confirmed that the update was still rolling out with webmasters continuing to report significant fluctuations.

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