Top 7 Google Algorithm Updates Every SEO Should Know
Google Panda Update (2011)
Target low quality & duplicate content. It was a site-wide penalty.
Google Penguin Update (2012)
Target over-optimization & link spam.
Google Hummingbird Update (2013)
Focus on intent of a search rather than keyword matching process.
Google Pigeon Update (2014)
Google integrated more organic ranking signals to its local algorithm.
Google Mobile-Friendliness Update (2015)
Priority now given to mobile-friendly websites in ranking.
Google RankBrain Update (2015)
Machine learning became a part of Google algorithm.
Google BERT Update (2019)
It’s a deep learning algo for natural language processing. It improved google’s capability to understand the context of search queries.