TheWorld Wide Web(www,W3) is aninformation systemof interlinkedhypertextdocuments that are accessed via theInternetand built on top of theDomain Name System.[1]It has also commonly become known simply asthe Web. Individual document pages on the World Wide Web are calledweb pagesand are accessed with a software application running on the user's computer, commonly called aweb browser. Web pages may contain text,images, videos, and othermultimediacomponents, as well asweb navigationfeatures consisting ofhyperlinks.