SEO (Search Engine Optimization) is the practice of optimizing a website to improve its visibility and ranking on search engine results pages (SERPs). The goal of SEO is to attract organic (non-paid) traffic by enhancing the website’s relevance, structure, and authority according to search engine algorithms. This involves optimizing technical aspects, content quality, keyword usage, and backlinks to help search engines understand and rank the website higher, making it easier for users to find it when searching online.