In IANA root
Yes — real
All TLDs / .uk / .co.uk / Is .uk / .co.uk legit?
.uk / .co.uk is safe to use for websites and email. Legitimacy scams are about the site, not the extension — but .uk / .co.uk itself has a normal reputation with spam filters and browsers.
.uk / .co.uk is a country-code TLD, and Google may geo-target it toward its home country. If your audience is global, a generic TLD is the safer SEO choice; if your audience is local, .uk / .co.uk is an advantage.
Source: IANA root zone database, checked October 18, 2026.
For UK-market businesses, .co.uk still outranks and out-trusts .com with British customers. Full pros, cons, and pricing in the complete .uk / .co.uk review — or jump straight to where to buy .uk / .co.uk.