What is .fi?
A little context on Finland: the capital is Helsinki, languages include Finnish and Swedish, the currency is the Euro (EUR) and the international dialing code is +358.
Finland shares land borders with 3 countries, so the ccTLDs next door are .no (Norway), .se (Sweden) and .ru (Russia).
IANA lists Finnish Transport and Communications Agency Traficom as the manager of .fi, with an address in Finland. The registry's website is https://domain.fi. ccTLD managers set their own policies — who can register, which second-level names exist, pricing to registrars — so those rules differ from country to country.
On the technical side, .fi is served by 10 authoritative name servers, every one of them reachable over IPv6. It is also DNSSEC-signed: the root zone carries a DS record for .fi, which lets validating resolvers check its answers cryptographically. Registration data is published over RDAP and WHOIS (the WHOIS server is whois.fi).
.fi FAQ
What country is .fi?
.fi is the country-code top-level domain for Finland, in Northern Europe.
What is Finland's domain extension?
Finland's website extension is .fi, its country-code top-level domain. "FI" is its ISO 3166-1 alpha-2 code.
Who owns the .fi domain?
IANA lists Finnish Transport and Communications Agency Traficom as the manager of .fi: it runs the registry and sets the rules for Finland's ccTLD. Individual .fi names belong to whoever registers them.
Can I register a .fi domain from the US?
It depends on Finnish Transport and Communications Agency Traficom's policy. Some ccTLDs are open to anyone in the world, while others require a local address, company or trademark. Check the registry (https://domain.fi) or an accredited registrar before you buy.
Is .fi DNSSEC-signed?
Yes. The root zone has a DS record for .fi, so DNSSEC validation works all the way down from the root.
How do I look up who owns a .fi domain?
Query the registry's registration data service: the WHOIS server is whois.fi, and RDAP lookups go to https://rdap.fi/rdap/rdap/. Many registrants use privacy services, so personal details may be hidden.
Sources
Data from IANA root zone version 2026102000. Last changed September 15, 2025. Spotted something wrong? Tell us.
