Numerous Google algorithms impact search engine optimization (SEO). However, there are five that are most important for SEO practitioners to understand. These are the Penguin, Panda, Hummingbird, Pigeon, and  Google Possum 1.Google Panda Google Panda is a search engine algorithm that was introduced in February 2011. The algorithm was designed to penalize websites that were found to be producing low-quality content. Websites affected by Panda typically had a large amount of low-quality content, such as spammy articles, auto-generated content, or plagiarized content....