Is .io legit?
Yes — .io is a legitimate top-level domain, live in the official IANA DNS root since 1997 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
1997
Our rating
Is .io safe?
.io is safe to use for websites and email. Legitimacy scams are about the site, not the extension — but .io itself has a normal reputation with spam filters and browsers.
Is .io good for SEO?
.io 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 default startup TLD of the 2010s. Still credible for dev tools, but pricier and no longer novel — and its ccTLD status has a real geopolitical asterisk. Full pros, cons, and pricing in the complete .io review — or jump straight to where to buy .io.