A single web server may provide multiple websites, while some websites, especially the most popular ones, may be provided by multiple servers.

Multiple web resources with a common theme and usually a common domain name make up a website. The information in the Web is transferred across the Internet using the Hypertext Transfer Protocol (HTTP). Web applications are web pages that function as application software. Web navigation, or web surfing, is the common practice of following such hyperlinks across multiple websites. The HTML language also supports hyperlinks (embedded URLs) which provide immediate access to other web resources. This markup language supports plain text, images, embedded video and audio contents, and scripts (short programs) that implement complex user interaction.

The original and still very common document type is a web page formatted in Hypertext Markup Language (HTML). Servers and resources on the World Wide Web are identified and located through character strings called uniform resource locators (URLs). ĭocuments and downloadable media are made available to the network through web servers and can be accessed by programs such as web browsers.

The World Wide Web ( WWW), commonly known as the Web, is an information system enabling documents and other web resources to be accessed over the Internet. A global map of the Web Index for countries in 2014

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