What is a URL

A Uniform Resource Locator (URL) is a string of characters conforming to a standardized format, which refers to a resource on the Internet (such as a document or an image) by its location. For example, the URL of this page on pbwiki is

http://sardalya.pbwiki.com/URL.

An HTTP URL, commonly called a web address, is usually shown in the address bar of web browser.