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Google Panda is a series of on-going algorithm updates and data refreshes for the Google search engine that the company rolls out to help refine its search algorithm to improve the value of search query results for users.

The Google Panda updates specifically tweak the algorithm as part of Google's continual efforts to elevate high-quality sites and web pages to the top of the organic search results while lowering, or penalizing, the rank of lower-quality or "thin' web sites and pages, particularly those sites that display a large amount of advertising without much in terms of high-quality content.