Google algorithm updates are a regular occurrence that happen to improve the search engine results for both Google and its users. When a new update is released, it typically changes how certain searches are handled on Google Search. This can change what appears in the top spots of search engine results pages (SERPs), which could impact your website's ranking.

Panda was launched in early 2014 as an attempt to reduce spam content from appearing in SERPs. Over time, it has been expanded to include more than just spam prevention; recent improvements have included better quality matching across all sources of content while reducing false positives (sales calls or scams that may appear as legitimate ads). In April 2016, Google announced that they were discontinuing Panda specifically due to concerns over low-quality link building practices being used to achieve high rankings organically.[2]

Penguin was introduced in May 2011 as another anti-spam measure aimed at removing low-quality links from websites. It uses machine learning algorithms similar to those used by human evaluators when reviewing sites for inclusion on the Adsense platform.

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