The type of search engine optimization (SEO) that focuses on improving a website's position in organic search results is known as on-page SEO. This involves optimizing various elements within the website itself, such as content quality, keyword usage, meta tags, and header structures. Effective on-page SEO ensures that a site is user-friendly and informative, and it enhances its visibility to search engines. This type of optimization is essential for attracting organic traffic, as it directly impacts how well a site ranks in relevant search queries.