Google’s rise to dominance in the search engine market, particularly after 2005, marked a turning point. Google’s algorithms, most notably Panda (2011), Penguin (2012), and Hummingbird (2013), targeted and devalued low-quality content and manipulative link-building practices. These updates significantly impacted websites relying on “black hat” SEO techniques, leading to ranking drops or even complete de-indexing. Mobilegeddon (2015) prioritized mobile-friendly websites. Further updates like RankBrain (2015), BERT (2019), and MUM (2021) introduced machine learning and natural language processing to better understand search intent and user context.

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