Home » Hosting Encyclopedia » Domain Terms » Essential Domain Terms » What is a Subdomain

What is a Subdomain

In the Domain Name System, a subdomain is a domain that is part of a larger domain. In that sense, every domain except the root domain is a subdomain. Many websites hosting providers offer free subdomains of their own domains that can be used with paid or free website hosting plans. But what is a subdomain, really? For example, wikipedia.org is a subdomain of the .org domain and en.wikipedia.org is a subdomain of the wikipedia.org domain. The technique of using words which are more easily remembered than the abstract numbers that represent a host’s address on a computer network, goes back to the ARPANET era, before the mass adoption of the Internet as we know it today.

 

Why You May Need a Subdomain

What is a subdomain’s most common use? Most of the subdomains are used for hierarchical organization of the content within a website. Let’s say you’re a website owner and you want to separate the parts of your website. Giving them different subdomains is useful. For example, if differentiation is needed for multiple services offered by your site. Let’s say, the website is of a university (e.g. university.edu) that may have a subdomain for each one of its faculties (e.g. faculty-of-law.university.edufaculty-of-history.university.edu, etc.), or a business website could feature several subdomains designated to multiple departments – sales.businessname.commarketing.businessname.comsupport.businessname.com and so on. It makes for a cleaner and easy to remember website structure.

Was this article useful?

Click on a star to rate it!

Average rating 0 / 5. Vote count: 0

No votes so far! Be the first to rate this post.

Newest Articles:

KVM

What you need to know: KVM (Kernel-based Virtual Machine) is a virtualization technology that is free, open-source, and available in most modern Linux distributions. Thanks to it, you can create and run Linux and Windows-based virtual machines that are independent of...

Second Level Domain (SLD)

The Second Level Domain or SLD is an essential part of the hierarchical Domain Name System. It is the second part of the full domain name after the Top Level Domain, on its left side. The Second Level Domain is often the same as the website name, the company or the...

Top-Level Domain (TLD)

The Top Level Domain name (TLD) is the last or right-most fragment of the domain name. The parts of the domain name are separated with dots and form their own hierarchy in the Domain Name System (DNS). There is a Top-Leveл Domain list where you can see all available...

IANA

What is IANA? Although the Internet is not really a centralized system, there are some key infrastructure elements that need to be coordinated. The Internet Assigned Numbers Authority (IANA) is an organization that was founded in 1988 by the government of the U.S.A....

ICANN

What is ICANN? ICANN is an abbreviation from Internet Corporation for Assigned Names and Numbers. It is the non-profit organization that’s responsible for the assignment and coordination of unique Internet addresses and names for all devices connected to the Internet,...

Ready to Create Your Website?