Search Engine Optimization (SEO) is the practise of improving the visibility and ranking of a website or online content in search engine results pages (SERPs). SEO strives to boost both the quality and quantity of search engine traffic that comes from Google, Bing, and Yahoo. Any business or person with a website or online presence can gain from SEO. This covers companies of all sizes, from tiny local businesses to sizable multinational corporations, as well as nonprofit groups and charities, e-commerce websites and online marketplaces, blogs and online publications, individual websites and online portfolios, governmental organisations, and educational institutions.