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URL - Uniform Resource Locator

What is URL?

A Uniform Resource Locator (URL),
colloquially termed a web address,is a
reference to a web 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)


WEBSITE
https://url.spec.whatwg.org



HTTP uses Internet address in a special format called a Uniform Resource Locator Or URL.

URLs look like this:
type://address/path


The other example of URLs are:

ftp://ftp.prenhall.com,http://www.yahoo.com,news://alt.tennis ,www.Instagram.com,www.Facebook.com ,www.blogger.com etc.

A URL is also referred to as Web Address Sometimes.

Element of a URL

A URL(Uniform Resource Locator) is an address of a file on Internet . Let us discuss the components or syntax elements of URLs.

A file's Internet address , or URL, is determined by the following:

  • The type of server or protocol
  • The name/address of the server on the Internet
  • The location of the file on the server ( this location may be related as a "path" through the file hierarchy)
List the types of servers you may encounter, along with the protocol they use, and the type(s) of information they provide.


In any typical URL e.g., http://www.blogger.com, the "http" identifies both the protocol and server. (According to standard URL syntax , a colon(:) and two forward slashes (//) follow the protocol /server.)

Similarly , in URL ftp://www.Facebook.com, the "ftp" identifies both the protocol and server.Here it is FTP type of server. Refer to table for more types of servers.
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