Search engine optimization

Practice and strategies of increasing online visibility Search engine optimization (SEO) is the practice of improving the visibility and overall performance of websites and web pages in search engine results pages (SERPs). It focuses on increasing the quantity and quality of traffic from unpaid (organic) search results rather than paid advertising. SEO applies to multiple search formats, including web, image, video, news, academic, and vertical search engines, as well as AI-assisted search interfaces. SEO is commonly used as part of a broader digital marketing strategy and involves optimizing technical infrastructure, content relevance, and authority signals to improve rankings for user queries. The objective of SEO is to attract users who are actively searching for information, products, or services, thereby improving brand visibility, user engagement, and conversions. History Webmasters and content providers began optimizing websites for search engines in the mid-1990s as the first search engines were cataloging the early Web. Search engine users would query the URL of a page, and then receive information found on the page, if it existed in the search engine's index. ALIWEB and t