Search Engine Optimization (SEO) is a multifaceted and dynamic digital marketing strategy that revolves around enhancing a website's visibility and ranking on search engine results pages (SERPs). Its primary goal is to increase organic (non-paid) traffic to a website, thereby improving its online presence and potentially driving more visitors, customers, and revenue. SEO encompasses a wide range of techniques and practices that aim to align a website with the algorithms and ranking criteria used by search engines like Google, Bing, and Yahoo. Here is a comprehensive description of SEO: