What is a domain name?
Your website’s address on the internet — what it is, how it works, what it costs, and how to choose a good one for your UK business.
A domain name is the human-readable address of a website — for example pulsecreate.co.uk. It’s what people type to reach you, and it points to the server where your website lives.
Without one, visitors would have to memorise a string of numbers (an IP address). The domain turns that into something memorable. You rent it annually — usually £5–£15/year for a .co.uk.
Along with hosting, the domain name is one of the two things every website needs — and it’s the part people actually see and remember. So it’s worth getting right.
How a domain name works
Every server on the internet has a numeric address — an IP address, like 192.0.2.1. Those numbers are how computers find each other, but they’re hopeless for humans. The domain name system (DNS) is the phonebook that matches a memorable name to those numbers.
When someone types your domain:
- Their browser looks up the name in DNS.
- DNS returns the IP address of your hosting server.
- The browser connects to that server and fetches your website.
All of this happens in under a second. You never see the numbers — that’s the whole point.
The parts of a domain name
Take www.pulsecreate.co.uk — it has three parts:
- The second-level domain —
pulsecreate. This is the part you choose and register. It’s your brand. - The top-level domain (TLD) —
.co.uk. The extension. There are hundreds:.com,.uk,.org,.net, plus newer ones like.plumbingor.shop. - The subdomain —
www. Optional and largely historical; most sites work with or without it.
Do you own a domain name?
Strictly, no — you register it, which is a renewable lease. As long as you keep paying the annual renewal, it’s yours to use. Let it lapse and it goes back on the open market, where anyone — including a competitor — can grab it. Plenty of businesses have lost their domain this way.
Top tip: turn on auto-renew the day you register, and make sure the renewal reminder goes to an inbox you actually check. A lapsed domain is one of the most common — and most avoidable — website disasters.
How to choose a good domain name
If you’re picking one for your business, these rules hold up:
- Match your business name if at all possible. Consistency matters.
- Keep it short. Every extra character is another chance to mistype it.
- Make it easy to say out loud. If you have to spell it over the phone, it’s too clever.
- Avoid hyphens and numbers unless they’re genuinely part of your name. “smiths-plumbing-247.co.uk” screams cheap.
- Pick the right extension. For UK businesses,
.co.ukis the default expectation. Grab the.comtoo if you can, to protect the brand.
What does a domain cost?
Broadly:
- .co.uk — around £5–£15/year
- .com — around £10–£20/year
- .uk — similar to .co.uk
- Niche extensions (.plumbing, .shop) — often £30–£80/year; rarely worth it for a local business
Watch for the classic trick: a bargain first-year price that triples on renewal. Check the renewal cost before you commit.
Domain vs hosting — the one-sentence version
The domain is the address; hosting is the building. You need both to have a working website. They can be bought from the same company or different ones — either is fine; you just point the domain at the hosting.
Can you change your domain later?
Yes, but it’s a pain — every link, email address, business card, van sign and Google ranking is tied to it. Changing domains means redirects, lost SEO ground and confused customers. Far better to choose carefully once and keep it forever. We’ll sort your domain, hosting and build in one go — get a free demo.
Not sure where to start?
We’ll sort your domain, hosting and build in one go — and show you a free demo first.