A domain (or domain name) is the address people type into a browser to reach your website — example.com, bbc.co.uk, wikipedia.org. Every device on the internet has an IP address, something like 203.0.113.10, and that’s how machines actually find each other — but nobody wants to memorise numbers. A domain is a readable label that stands in for one. Type the name; the internet looks up the number for you.
A domain name is the same thing as a website.
The domain is only the address. The website (your pages and content) and the hosting (the server that stores them) are separate things — you can change either without changing your domain.
How a name becomes a live website
When you type a domain, your computer has to find the server it points to. That lookup — the Domain Name System, or DNS — runs through a short chain of servers, and the whole thing usually finishes in tens of milliseconds:
- Your browser asks a resolver (usually your ISP’s, or a public one like Cloudflare’s
1.1.1.1or Google’s8.8.8.8): “what’s the IP for this domain?” - If the resolver doesn’t already know, it asks a root server, which points it to the servers for the ending (
.com). - The .com servers point it to the domain’s own authoritative nameservers.
- Those return the domain’s A record — the IPv4 address.
- Your browser connects to that IP, and the page loads.
- 1
You type the domain
example.com goes into the address bar.
- 2
Browser asks DNS
“Which IP address does this domain point to?”
- 3
DNS replies
It returns the IP in the domain’s A record.
- 4
The page loads
Your browser connects to that server and fetches the page.
The parts of a domain name
Read a domain right-to-left and it breaks into clear pieces. Take shop.example.com:
optional · free to create
the part you choose & pay for
the ending (TLD)
- .com — the top-level domain (TLD), the ending. Either a generic one (.com, .org, .net) or a country ending (.uk, .de). There are ~1,500+ of them in the official root — see our TLD reference.
- example — the second-level domain, the part you choose and pay to register. This is the only part you actually pay for.
- shop — a subdomain, an optional prefix you create for free once you hold the domain (think
blog.,app.,shop.).
Who you’re actually buying from
Most guides say “you buy a domain from GoDaddy” and stop. Three different parties are involved, and knowing them makes the whole system make sense:
| Who | What they do | Example |
|---|---|---|
| Registry | Operates the master database for an ending. Wholesale only — you can’t buy from it directly. | Verisign runs .com |
| Registrar | The ICANN-accredited company you actually buy from — the shop to the registry’s wholesaler. | Namecheap, Cloudflare, GoDaddy |
| Registrant | You — the person or business the name is registered to. | Whoever registered example.com |
| ICANN | The non-profit that referees: it authorises registries and accredits registrars. It doesn’t sell or hold names. | — |
In one line: ICANN accredits registrars, registries run the endings, and registrars sell names to you. When you compare the best domain registrar, you’re choosing among that middle layer — the shopfronts — not the registry, and never ICANN.
Why you don’t really “own” your domain
I bought my domain, so I own it forever.
You don’t own a domain outright. You register the exclusive right to use it for 1 to 10 years at a time (ICANN caps each registration at 10), and there’s no permanent sale. But as long as you keep renewing, you hold it indefinitely — no one can take it back.
So “buying a domain” really means registeringReserving the exclusive right to use the name for a set period (1–10 years) under an agreement with a registrar, and keeping it by renewing before it expires. it — leasing it, in effect. The lease analogy isn’t perfect, though: there’s no landlord who can refuse to renew. Pay on time and the name is yours for as long as you want it. Stop renewing, and it eventually expires and returns to the market for someone else.
Domain, hosting, website — what you’re (not) paying for
These are separate things, and you can buy each from a different company:
Domain
The address
What people type to reach you (example.com).
Hosting
The land
The server that stores your site’s files.
Website
The building
The pages, design and content itself.
Being clear about it saves real confusion. A few things you are not buying when you register a domain:
- Not the ending — the registry owns .com; you register a name under it.
- Not the IP address — that comes from your host, and you never purchase it directly.
- Not the website or the hosting — those are separate purchases (see above).
- Not the name forever — you lease it for a renewable term, as above.
What you are buying is one specific name, under someone else’s ending, for a renewable term — and the right to point it at any server you like.
How big the domain world is
For context: that’s spread across roughly 1,500+ different endings, but the distribution is wildly lopsided — .com is bigger than the next several endings combined, which is exactly why a .com still carries a credibility the alternatives don’t. (Worth weighing when you read our guide to choosing a name.)
A few words you will keep meeting
- WHOIS — the public record of who registered a domain and when it expires. WHOIS privacy hides your personal details, and good registrars now include it free.
- Nameservers — the servers that hold your DNS records. Pointing a domain at a host usually means changing its nameservers. (Different from an A record, which is the actual name–to–IP entry those servers hand out.)
- SSL / HTTPS — the padlock in the address bar. A certificate encrypts the connection; it’s free via Let’s Encrypt and most hosts set it up automatically.
For the rest, see the plain-English domain glossary.
Ready for the next step?
Now that you know what a domain is, the natural next moves:
- Types of domain names — gTLDs vs ccTLDs, branded vs generic, premium names explained.
- DNS check tools — how to verify and troubleshoot the records behind your domain.
- Domain name examples and how to choose one.
- How to register a domain — the step-by-step.
- How much a domain costs — what you’ll actually pay.
Frequently asked questions
- Do I own a domain forever once I buy it?
- No. You register the exclusive right to use it for a set term — 1 to 10 years at a time, since ICANN caps each registration at 10 — and keep it by renewing. There’s no permanent sale, but as long as you keep renewing, the name is yours for as long as you want it.
- Is a domain the same as a website?
- No. The domain is just the address. The website is the pages and content, and hosting is the server that stores them. They’re three separate things you can buy from three different companies.
- Who actually sells me a domain?
- A registrar — an ICANN-accredited company like Namecheap, Cloudflare or GoDaddy. Behind it, a registry (for example Verisign for .com) runs the ending wholesale, and ICANN coordinates the whole system. You buy from the registrar.
- How does typing a domain find the right website?
- Through DNS. Your browser asks a resolver for the domain’s IP address; the resolver works down a chain — root servers, then the .com servers, then the domain’s own nameservers — gets the IP, and your browser connects to it. It all happens in tens of milliseconds.
- What is the difference between a domain and a URL?
- The domain is the core address (example.com). A URL is the full path to a specific page — the protocol, domain and path together, like https://example.com/about.