.co.uk

A .co.uk is the standard address for companies in the United Kingdom: an accountancy firm in Manchester, a builder in Kent, a retailer that only ships domestically. British customers read it as the address of an established business, and that is where it differs from a generic extension.

There are no registration conditions, so an exporter based abroad can hold one as well. If you publish separate British pricing, terms and delivery times, a .co.uk is the usual place for them rather than a subfolder of your existing domain.