Is .co legit?
Yes — .co is a legitimate top-level domain, live in the official IANA DNS root since 1991 and sold by accredited registrars. It carries no notable spam or trust baggage; we rate it 4/5.
In IANA root
Yes — real TLD
Since
1991
Our rating
Is .co safe?
.co is safe to use for websites and email. Legitimacy scams are about the site, not the extension — but .co itself has a normal reputation with spam filters and browsers.
Is .co good for SEO?
.co is technically a country-code TLD, but Google's own documentation lists it among the ccTLDs treated as generic — it is not geo-restricted and ranks globally like any gTLD.
Source: IANA root zone database, checked August 23, 2026.
Bottom line
The best pure .com substitute — one letter off, reads as 'company', no explanation needed. Full pros, cons, and pricing in the complete .co review — or jump straight to where to buy .co.