.co.uk vs .com: Which Domain Should UK Businesses Choose?

Choosing between .co.uk and .com is one of the first decisions UK business owners face when setting up a website. The data strongly favours .co.uk for businesses targeting British customers.

What the Research Shows

Studies consistently show that UK consumers trust .co.uk domains more than .com:

• 81% of British internet users prefer to buy from .co.uk websites over .com
• 70% of UK consumers choose .uk domain websites when purchasing products and services
• 93% of British users say .uk domains remain their first choice when presented with alternatives

The biggest UK retailers know this: Amazon.co.uk, eBay.co.uk, and Tesco.com all redirect UK visitors to their .co.uk domains for a reason.

When .co.uk Is the Right Choice

Choose .co.uk if your business:

• Primarily serves UK customers
• Has a physical presence in the UK
• Wants to signal British identity
• Operates in regulated industries where jurisdiction matters
• Competes with larger international brands (the local angle helps)

For most UK small businesses, .co.uk is the obvious choice. It immediately tells visitors you're a British business.

When .com Makes Sense

Consider .com if:

• You're building an international brand from day one
• Your target market spans multiple countries
• You're in tech where .com is the expected norm
• The .co.uk version is taken but .com is available

Even in these cases, many businesses register both and redirect .co.uk to .com (or vice versa).

The Cost Difference

Practical consideration: .co.uk domains are typically cheaper:

• .co.uk: £8-15 per year
• .com: £12-20 per year
• Premium domains: .com premiums can be 10x the price of equivalent .co.uk

If your ideal business name is available in both, you're likely to get it cheaper as a .co.uk. Premium .com domains often cost thousands; the same name in .co.uk might be available at standard registration price.

SEO Considerations

Google's approach to country-code domains has evolved:

• .co.uk domains get a slight boost for UK-based searches
• Google Search Console allows you to target specific countries regardless of domain
• Content relevance matters more than domain extension

That said, .co.uk signals to Google (and users) that your content is relevant to UK audiences. For local SEO targeting British customers, it's an advantage.

.co.uk vs .uk

Since 2014, you can also register .uk domains directly (yourname.uk instead of yourname.co.uk). The difference:

• .co.uk: Traditional, widely recognised, most established businesses use this
• .uk: Shorter, cleaner, but less familiar to some users

Most users still expect .co.uk. If you register a .uk domain, also register the .co.uk to prevent confusion.

Registering Both

The safest approach for UK businesses:

1. Register both yourname.co.uk and yourname.com
2. Use .co.uk as your primary domain
3. Redirect .com to .co.uk
4. Consider registering .uk as well for brand protection

At £30-50 per year total, registering multiple extensions is cheap insurance against competitors or squatters grabbing your other domains.

What About Other Extensions?

New domain extensions like .shop, .london, or .tech are available, but:

• Users are less familiar with them
• Some may look unprofessional or spammy
• Email deliverability can be worse (spam filters are more suspicious)

For a business website, stick with .co.uk or .com. Novel extensions work better for specific campaigns or side projects.

Making the Decision

Choose .co.uk if:

• Your customers are primarily in the UK
• You want to emphasise your British identity
• You're competing with international companies
• Budget is a consideration (cheaper domains, cheaper premiums)

Choose .com if:

• You're targeting international markets from the start
• You're in tech/startups where .com is expected
• The .co.uk isn't available but .com is

Register both if:

• You can afford £30-50/year (most businesses can)
• You want to protect your brand
• You might expand internationally later

Domain Strategy for UK Businesses

Beyond the extension choice, consider:

• Keep it short and memorable - easier to type and remember
• Avoid hyphens - they look unprofessional and are hard to communicate verbally
• Match your business name - consistency builds trust
• Think about email - you'll email from this domain, so it needs to look professional

For more on choosing the right domain name, see my domain strategy guide.