How to Buy a Domain Name for Your Website

Buying a domain name is one of the first steps in launching a website, and one of the few that is hard to undo later. This guide explains how to buy a domain name in practice: what you are actually paying for, which extensions suit a UK business, how to check domain availability, how to choose a domain registrar and what to set up once the domain is yours.

The steps are the same for a small business website, an online shop or an information site.

Every website sits on a server with a numeric IP address. A domain name is the readable address that points to it: when someone types yourbusiness.co.uk into a browser, the Domain Name System (DNS) looks up the IP address, and the browser asks that server for the page. You can think of the domain as the street address and the IP address as the map coordinates. We explain the structure in more detail in what a domain name is and how to choose one.

When you buy a domain name, you do not buy it outright. You register the right to use it for a set period, usually starting from one year, and then renew it. The domain is also separate from web hosting, the server space where your website files are stored, although many companies sell both.

You can register a domain yourself or have it handled as part of website development. Either way, make sure it is registered in your business’s name.

A web address has two main parts: the top-level domain (TLD) and the second-level domain (SLD). In “yourbusiness.com”, “yourbusiness” is the SLD and “.com” is the TLD, also called the domain extension. With .co.uk the extension has two parts, and your name sits in front of both: yourbusiness.co.uk.

Top-level domains

TLDs group websites by country or by purpose. There are hundreds of them, and they fall into four main types:

Second-level domains

The SLD is the unique name you choose within an extension. You register it through a domain registrar, a company authorised to sell domains for that extension. For .uk domains, registrars work with Nominet, the registry that runs .uk. Well-known registrars that sell .co.uk and .com domains include:

• 123 Reg and IONOS;
• Namecheap and GoDaddy.

The SLD is the part you make up yourself. It usually reflects your business name, your brand or what you do.

Before you pay, test your shortlist against a few points. Our guide to choosing a domain name covers naming in more depth; these are the checks that matter most at the moment of purchase:

Make it your brand

A domain that matches your business name is the easiest one for customers to find and remember, and every mention of your brand reinforces it. Large brands follow this rule: Marks & Spencer is marksandspencer.com, and John Lewis is johnlewis.com. If your company name is long, a shorter trading name or a clear abbreviation can work well.

Choose the right domain extension

If most of your customers are in the UK, .co.uk is the extension British visitors know best, and .uk is a shorter alternative. If you sell abroad, .com is the familiar choice. Many UK businesses register both .co.uk and .com and point one to the other.

Well-known extensions such as .co.uk, .com and .org are trusted by most visitors, while some unusual extensions are linked in people’s minds with spam. The drawback is that short, simple names in these extensions are often taken. Before you buy, check who uses the same name with other extensions, as customers may confuse your site with theirs.

Keep it short and memorable

Many people will type your address from memory after hearing it from a friend or seeing it on an advert. There is no fixed length limit, but a name you can say in one breath and spell without explaining is a good test. A short, distinctive name:

• is easier to remember and type correctly;
• fits better on business cards, signs and adverts;
• is less likely to be confused with a competitor in your area or industry.

Avoid numbers and hyphens

Numbers and hyphens make a name harder to say over the phone, and people often forget the hyphen or type the number as a word, and each mistake is a visitor who does not reach your site.

Check for trade mark conflicts

Using someone else’s trade mark in your domain name can lead to legal action, a forced transfer of the domain and the cost of rebranding. Disputes over .uk domains are decided under Nominet’s Dispute Resolution Service, which WIPO administers for cases filed from 7 July 2026. Check the name before you buy:

• the UK trade mark register, through the Intellectual Property Office search on GOV.UK;
• WIPO’s Global Brand Database for international marks, and EUIPO for marks registered in the EU.

It is also worth searching Companies House and Google for businesses already trading under a similar name in your area.

Think about the future

You will use the domain for many years, so avoid anything that will date, such as a year in the name. Think about how the business may grow: a name tied to one service or one town can feel wrong if you later add services or move into new areas.

Use a domain name generator

If you are stuck, a domain name generator can suggest options. You enter a few keywords or features of your brand, and it combines them into available names. Most registrars have a similar tool built into their search and suggest alternatives when your first choice is taken. Treat the results as ideas, then check them against the points above.

Once you have a name, you can register it. The process takes a few minutes, but a few checks now save problems later. Here is how to buy a domain name step by step.

Choose a reliable domain registrar

A domain registrar is the company that registers the domain for you and through which you renew and manage it. Domains with generic extensions such as .com are sold by ICANN-accredited registrars and their resellers, and country code domains such as .co.uk are sold through registrars that work with the country’s registry, which for .uk is Nominet. When you compare registrars, check:

• the renewal price, not only the first-year offer;
• how easy it is to move the domain to another registrar later;
• security options such as two-factor authentication for your account;
• how your contact details are shown in public domain lookups;
• DNS management and how quickly support answers;
• reviews from other customers.

Good registrars state their prices and terms clearly before you pay.

Check domain availability

Next, make sure the name is free. You can check domain availability in several ways:

Check the same name on Instagram, Facebook, LinkedIn and X (formerly Twitter) as well. Tools such as Namechk show at once where a username is free, so your website and social profiles can match.

Pick your final domain name

Now it is time to decide. Keep these points in mind:

• Do not set your heart on one option. Your first choice may be taken, so prepare a shortlist of 5-10 names;
• A taken domain is not always lost. If it is not in use, you can try to contact the owner and offer to buy it, directly or through a domain broker. Agree the price and the transfer in writing;
• You can wait for a domain to expire, but many owners renew, and popular names are often registered again as soon as they are released, so do not rely on this;
• If the name is taken in one extension, check others, such as .uk, .com or .org. Sometimes it is better to keep the name that fits your brand exactly and use a less common extension.

Buy the domain name and complete the registration

Add the domain to your basket, choose the registration period and pay. Enter accurate contact details and register the domain in the name of your business, not a developer or an employee, so the business stays the legal owner. Turn on automatic renewal and keep the account email up to date: a domain that expires can stop your website and email working, and someone else can register it.

Confirm your details and set up the domain

If your registrar asks you to confirm your contact details by email, do it straight away. Then connect the domain to your hosting in the DNS settings, set up business email addresses on the domain and install an SSL certificate so your website opens over HTTPS. Finally, verify the domain in Google Search Console by adding a DNS record, so you can see how your site appears in Google, and connect website analytics such as Google Analytics 4.

When the domain is ready, the next step is the website itself. See our small business website service, or get in touch to discuss your project.