Your domain name is important, but probably not as important as you think. The perfect domain won't make your business successful, and a less-than-perfect one won't break it. Here's how to pick something sensible without overthinking it.
Keep it simple
The best domain names are easy to say, spell, and remember. If someone asks for your website address, you want to be able to tell them without spelling it out letter by letter. Avoid hyphens, numbers, and awkward combinations.
Use your business name
If your business name is available as a domain, use it. It's straightforward and matches what people already know about you. Don't overthink it—yourname.com is usually better than something clever and obscure.
.what?
.co.uk is still what most people expect for a small UK business, if your prefer.com it's available there is nothing stopping you getting both and using them for the same website. Other extensions can work, but be prepared for people to default to .com or .co.uk when typing it from memory.
Make it relevant
If your business name isn't available, something that relates to what you do can work. But don't try too hard. "BristolBakery.co.uk" is clear and useful. "TheArtisanalBreadEmporium.co.uk" is a mouthful.
Check availability first
Before you get too attached to an idea, check if the domain is available. A quick search on any domain registrar will tell you. If it's taken, don't despair—move on to your next option.
Don't wait for perfect
The perfect domain name might be taken. The second-best option that's available today is better than waiting indefinitely for something ideal. You can always change it later if you need to, though it's better to stick with what you have once you're established.
Choose something sensible, get it registered, and move on to building your actual website. That's where your real focus should be.