SEO marketing, or Search Engine Optimization, is a branch of digital marketing that improves a website’s visibility and ranking in organic (unpaid) search engine results, such as on Google, by optimizing its content, structure, and authority for both users and search engines. Key components of an SEO strategy include on-page SEO (optimizing website content and code), off-page SEO (acquiring backlinks from other reputable sites), and technical SEO (enhancing site performance and crawlability), all aimed at driving more relevant organic traffic and establishing the site as an industry authority.