What Is a Domain Name?

Category: Domains & DNS · Updated 2026-10-30

A domain name is the human-readable address people type or click to reach a website, such as example.com, instead of the numeric IP address the site's server actually uses. It is made up of a chosen label plus a top-level domain (TLD) like .com or .org, is registered through a domain registrar for a renewable yearly fee, and is translated into the matching IP address behind the scenes by the Domain Name System (DNS).

The parts of a domain name

A domain name is made up of a few distinct parts read right to left:

Top-level domain (TLD): the suffix, such as .com, .org or .io
Second-level domain: the main label a person picks, such as "example" in example.com
Subdomain (optional): a prefix like "www" or "shop" that points to a specific section or service

Put together, shop.example.com is a subdomain of the registered domain example.com, which itself ends in the .com top-level domain.

How a domain name becomes a working website

Owning a domain name on its own does not host any content; it is simply a registered label pointed at something through DNS records. The typical path from registration to a live site looks like this:

Register the domain name through a domain registrar
Point the domain's nameservers at a DNS provider, often the one from your hosting account
Create an A record (or similar) that maps the domain name to the hosting server's IP address
Wait for DNS propagation, typically minutes to a few hours, before the change is visible everywhere

; Simplified DNS record for a domain
example.com.    A     203.0.113.10
www.example.com. CNAME example.com.

Domain names vs. related terms

Term	What it actually is
Domain name	The human-readable address, such as example.com
IP address	The numeric address a server actually uses, such as 203.0.113.10
URL	A full web address, including the protocol and path, like https://example.com/about
Hosting	The server space where a website's files and data actually live

A domain name and web hosting are bought and managed separately in most setups, even when the same company sells both, which is why a domain can be registered at one company and still point to hosting at a completely different one.

Registering and keeping a domain name

Domain names are registered for a term, typically one to ten years, through a domain registrar accredited by ICANN, the organization that oversees the domain name system. Registration must be renewed before it expires, usually annually, or the domain enters a grace period and can eventually become available for anyone else to register.

Frequently asked questions

What is the difference between a domain name and a URL?

A domain name is just the address label, like example.com, while a URL is the full web address including the protocol and any path, such as https://example.com/about.

What is the difference between a domain name and hosting?

A domain name is the address people use to find a site, while hosting is the server space where the site's actual files and data are stored; the domain is pointed at the hosting through DNS records.

How long can I register a domain name for?

Most registrars allow registration terms from one to ten years at a time, and the registration must be renewed before it expires to keep the domain.

Can I use a domain name without hosting?

Yes, a domain can be registered and left unused, or pointed at a simple forwarding page, without ever connecting it to a full hosting account.

Who controls the domain name system?

ICANN oversees the overall domain name system and accredits the registrars that sell domain names, while each top-level domain, like .com, has a registry operator that manages that specific extension.

What happens if I forget to renew my domain name?

Most registrars give a grace period after expiration during which the domain can still be renewed, but after that window closes the domain can be released and become available for anyone else to register.