URL (Uniform Resource Locator)

*What Is a URL?

URL is an acronym for Uniform Resource Locator and is a reference (an address) to a resource on the Internet.

A URL for HTTP (or HTTPS) is normally made up of three or four components:

1.A scheme. The scheme identifies the protocol to be used to access the resource on the Internet. It can be HTTP (without SSL) or HTTPS (with SSL).

2.A host. The host name identifies the host that holds the resource. For example, www.example.com. A server provides services in the name of the host, but hosts and servers do not have a one-to-one mapping. Refer to Host names

Host names can also be followed by a port number. Refer to Port numbers. Well-known port numbers for a service are normally omitted from the URL. Most servers use the well-known port numbers for HTTP and HTTPS , so most HTTP URLs omit the port number.

3.A path. The path identifies the specific resource in the host that the web client wants to access. For example, /software/htp/cics/index.html

4.A query string. If a query string is used, it follows the path component, and provides a string of information that the resource can use for some purpose (for example, as parameters for a search or as data to be processed). The query string is usually a string of name and value pairs; for example, term=bluebird. Name and value pairs are separated from each other by an ampersand (&); for example, term=bluebird&source=browser-search.?