Uniform Resource Locator

A Uniform Resource Locator (URL) is the address of a resource on the Internet and the protocol used to access it.

It indicates the location of a web resource like a street address indicates where a person lives physically — because of this, an URL is often referred to as “web address”.

A URL contains the following information:

• The protocol used to access the resource.
• The location of the [[server]] (whether by IP address or domain name).
• The [[port]] number on the server (optional).
• The location of the resource in the directory structure of the server.
• A fragment identifier (optional).

Info

A URL is a type of uniform resource identifier (URI). In common practice, the term URI isn’t used, or is used synonymously with URL, even though this is technically incorrect.