Search engine optimisation (SEO) is the process of affecting the visibility of a website or a web page in a search engine’s “natural” or un-paid (“organic”) search results. In general, the earlier (or higher ranked on the search results page), and more frequently a site appears in the web site search results list, the more visitors it will receive from the search engine’s users.
SEO positioning may target different kinds of search, including image search, local search, video search, academic search, news search and industry-specific vertical search engines. This gives a web site web presence. SEO positioning tactics may be incorporated into web site development and design.