URL

A uniform resource locator (URL), colloquially known as an address on the Web, is a reference to a resource that specifies its location on a computer network and a mechanism for retrieving it."Forward and Backslashes in URLs" - zzz.buzz[Uniform Resource Identifiers (URI): Generic Syntax https://datatracker.ietf.org/doc/html/rfc3986] - Berners-Lee, Tim; Fielding, Roy T.; Masinter, Larry (January 2005) 
Most web browsers display the URL of a web page above the page in an address bar. A typical URL could have the form http://www.example.com/index.html, which indicates a protocol (http), a hostname (www.example.com), and a file name (index.html).
==Syntax==
Every HTTP URL conforms to the syntax of a generic URI. The URI generic syntax consists of five components organized hierarchically in order of decreasing significance from left to right:
URI = scheme ":" ["//" authority] path ["?" query] ["#" fragment]
A component is undefined if it has an associated delimiter and the delimiter does not appear in the URI; the scheme and path components are always defined. A component is empty if it has no characters; the scheme component is always non-empty.
The authority component consists of subcomponents:
authority = [userinfo "@"] host [":" port]
This is represented in a syntax diagram as:
A URL is composed of different parts, some mandatory and others optional. The most important parts are highlighted on the URL below:
*Scheme (http://)
*Authority
**Domain name (example.com)
**Port (80)
*Path to the file (/path/to/myfile.html)
*Parameters (?key1=value1&key2=value2)
*Anchor (#SomewhereInTheDocument)
Format: http://example.com:80/path/to/myfile.html?key1=value1&key2=value2#SomewhereInTheDocument
==External Links==
*URL in Mozilla Developer.
==References==
Category:Web design