Search Engine Optimization (SEO) is the process of optimizing a website to rank higher in search engine results pages (SERPs), thereby increasing organic traffic. This involves various strategies, such as keyword research, on-page optimization, and link building, to improve a site's visibility. SEO aims to make a website more relevant and authoritative in the eyes of search engines like Google, Bing, and Yahoo. By following SEO best practices, websites can attract more targeted traffic, improve user experience, and ultimately achieve higher rankings, leading to increased visibility, credibility, and potential conversions. SEO is essential for any online business looking to grow its digital presence.