Google keeps changing its search algorithm every year and this change could be approximately 500-600 times. However, most of these changes are minor. Google also calls out the major update that seems to significantly affect the search engine results. One of these major updates is Google Penguin which was very first announced on April 24, 2012 (Penguin 1). All those Websites that seem to violate the rules and regulations of Google Webmaster have to face significant drops in their search engine rankings after this Penguin update. Here is when the immediate next Penguin updates were released: ...
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