what is URL?

URL stands for Uniform Resource Locator and is a reference or address to a resource on the Internet.

Uniform Resource Locators are also called as Uniform Resource Identifiers. They are short strings that identify resources on the web that are documents, images, downloadable files, services, electronic mailboxes, and other resources. They make resources available under a variety of naming schemes and access methods such as HTTP, FTP, and Internet mail addressable in the same simple way.