History of Google Algorithm Updates Google’s algorithms are a complex system used to retrieve data from its search index and instantly deliver the best possible results for a query. The search engine uses a combination of algorithms and numerous ranking factors to deliver webpages ranked by relevance on its search engine results pages (SERPs). Some of the major updates are; Panda Penguin Pigeon Hummingbird Rankbrain BERT Fred Parked Domain Exact match domain Pirate Bracket Possum Panda update-2011 Google Panda first launched in February 2011 as part of Google’s quest to eliminate black hat SEO tactics and web spam. It aimed to lower the rank of "low-quality sites" or "thin sites", in particular "content farms", and return higher-quality sites near the top of the search results. It against content spamming, flagerized content, content spinning, automated content, keyword stuffing etc... Panda 4.0 introduced in 2014 is the real time filter. Penguin ...