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Update 3.1 – November 2011: went out and impacted less than 1% of searches. Update 3.0 – October 2011: Google announced that people should “expect Panda-related flux in the next few weeks,” but that it would have less impact than previous updates at about 2 percent. The update included new signals in the Panda algorithm and a recalculation of how the algorithm affected websites. Update 2.5 – September 2011: Google confirmed to WebProNews that a refresh happened, though declined to share details about the sites impacted by it. Update 2.4 – August 2011: Google announced on its Webmaster Central blog that the Panda update had been rolled out internationally to English-speaking and non-English-speaking countries (except for Japan, Korea, and China). The update impacted 6 to 9 percent of queries in most languages.
Update 2.3 – July 2011: Google confirmed to Search Engine Land that it implemented a small data refresh. Update 2.2 – June 2011: Google confirmed to Search Engine Land that a data refresh occurred. Update 2.1 – May 2011: The industry first thought Denmark Email List this was a much larger update and could be Panda 3.0, but Google clarified that it was only a small data refresh. Update 2.0 – April 2011: Google announced the first core Panda update, which incorporated additional signals and rolled the algorithm out to all English-speaking Google users worldwide. Only about 2% of U.S. queries were affected. Update 1.0 – February 2011: Google announced on its official that a new update to reduce rankings for low-quality sites had been introduced, impacting about 12% of English queries. Learn more: Understanding Google Panda: Definitive Algo Guide for SEOs Penguin Algorithm Update The Penguin update worked to target link spam. Before rolling out Penguin, Google paid close attention to page link volume while crawling webpages.

This made it possible for low-quality pages to rank more prominently than they should have if they had a lot of incoming links. Penguin helped with the mission to make valuable search results as visible as possible by penalizing low-quality content and link spam. Many sites cleaned up their links. But they could stay in Penguin jail for months, unable to regain their lost rankings until Google ran the next update. Google made Penguin part of its real-time algorithm in September 2016, and a friendlier version emerged. History of Penguin Updates From 2012 to 2016, Penguin had several data refreshes and updates before rolling into the core algorithm.
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