Seacrh Engine Optimization it is the process of getting traffic from the free, organic, editorial, or natural listing all major search engines like google, bing, or yahoo.
Search Engine Optimization refers to the collection of techniques and practices that allow a site to get more traffic from search engines (Google, Yahoo, Bing). SEO can be divided into two main areas: off-page SEO (work that takes place separate from the website) and on-page SEO (website changes to make your website rank better).