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What is a Subdomain?

Subdomain (also known as third-level domain or sub domain) is part of a main domain name.

In general, a domain name has the following format : xxx.com, xxx.org, xxx.net, etc.
But the format of a subdomain is 111.xxx.com, 111.xxx.org, 111.xxx.net, etc.

Examples: demo.wcpdemo.com
demo.wcpdemo.com is a sud domain of wcpdemo.com


Subdomains help to organize information within a website. So a company website may use subdomains to classify the different aspects of its contents such as promotions.xyz.com , news.xyz.com and forum.xyz.com.


UNIX professionals who participate are entitled to register or more sub domain functionality, through the Web site management platform (WCP) can be easily added.