What is .online?
.online entered the DNS root zone on March 16, 2015, 11 years ago. It came out of ICANN's New gTLD Program, the 2012 application round that grew the root from 22 generic TLDs to well over a thousand.
Radix Technologies Inc SEZC also runs 9 other TLDs, including .fun, .host, .press, .site and .space.
On the technical side, .online is served by 4 authoritative name servers, every one of them reachable over IPv6. It is also DNSSEC-signed: the root zone carries a DS record for .online, which lets validating resolvers check its answers cryptographically. Registration data is published over RDAP and WHOIS (the WHOIS server is whois.nic.online).
Same registry, other endings
9 other TLDs share this operator.
.online FAQ
What does .online mean?
.online is a generic top-level domain named for the word "online", and it's aimed at tech & startups. It doesn't belong to any country.
What is .online used for?
.online is mostly used for tech & startups. Like most gTLDs, it's a label of intent rather than a guarantee — check the site, not just the ending.
What country is .online?
None. .online is a generic top-level domain, so it isn't tied to any country.
Who owns the .online domain extension?
Radix Technologies Inc SEZC operates .online as its registry, under a registry agreement with ICANN.
When was .online created?
.online was delegated to the DNS root zone on March 16, 2015.
Is .online a valid domain?
Yes. .online is an active top-level domain in the DNS root zone, delegated in 2015, so .online addresses work in every browser.
Can I buy a .online domain?
.online names are sold through ICANN-accredited registrars. Some gTLDs restrict who can register, so read Radix Technologies Inc SEZC's policy if you're unsure.
Is .online DNSSEC-signed?
Yes, the root zone holds a DS record for .online.
Sources
Data from IANA root zone version 2026102000. Last changed April 27, 2026. Spotted something wrong? Tell us.
