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A uniform resource locator (URL), colloquially known as an address on the Web, [1] is a reference to a resource that specifies its location on a computer network and a mechanism for retrieving it. A URL is a specific type of Uniform Resource Identifier (URI), [ 2 ] [ 3 ] although many people use the two terms interchangeably.
Effectively namespaces web-based protocols from other, potentially less web-secure, protocols This convention is defined within the HTML Living Standard specification: web+ string of some lower-case alphabetic characters :
URL is a useful but informal concept: a URL is a type of URI that identifies a resource via a representation of its primary access mechanism (e.g., its network "location"), rather than by some other attributes it may have. [19] As such, a URL is simply a URI that happens to point to a resource over a network.
Web pages may be redirected to a new domain for three reasons: a site might desire, or need, to change its domain name; an author might move their individual pages to a new domain; two web sites might merge. With URL redirects, incoming links to an outdated URL can be sent to the correct location.
A URL will often comprise a path, script name, and query string.The query string parameters dictate the content to show on the page, and frequently include information opaque or irrelevant to users—such as internal numeric identifiers for values in a database, illegibly encoded data, session IDs, implementation details, and so on.
Each article on the Wikipedia website is a distinct web page. The URL is visible in the browser's address bar at the top. A web page (or webpage) is a document on the Web that is accessed in a web browser. [1] A website typically consists of many web pages linked together under a common domain name.
about is an internal URI scheme (also known as a "URL scheme" or, erroneously, "protocol") implemented in various web browsers to reveal internal state and built-in functions. It is an IANA officially registered scheme , and is standardized.
The World Wide Web (WWW or simply the Web) is an information system that enables content sharing over the Internet through user-friendly ways meant to appeal to users beyond IT specialists and hobbyists. [1] It allows documents and other web resources to be accessed over the Internet according to specific rules of the Hypertext Transfer ...