.fun domains: registry, eligibility and lifecycle

IANA lists Radix Technologies Inc., based in the Cayman Islands, as the sponsoring organisation for .fun. The ICANN Registry Agreement names the operator as Radix Technologies Inc SEZC, signed 14 January 2016 as a Base, Non-Sponsored agreement, the standard contract type you'll find behind most open gTLDs.

The technical backend is farmed out, as it usually is. IANA's technical contact record names Tucows.com, Co., and a 2020s-era announcement confirms Tucows was picked as back-end registry services provider for Radix's whole TLD portfolio, .fun included. Yet Radix's own policies page states that registry functions for its TLDs are supported by CentralNic Ltd, and nobody seems to have squared that with the Tucows arrangement in any public source. The corporate structure behind Radix itself gets murkier still: one registrar page names Radix FZC DMCC as registry, while the .fun marketing site's own footer lists a completely different entity, Namify Domains Inc, as site operator. We would not treat the corporate lineage here as settled fact, it's a tangle.

What matters for a buyer is that the three roles stay distinct even when the corporate paperwork doesn't. The registry (Radix, through whichever backend provider is actually running things) operates the master database and sets policy, pricing tiers, term limits, that sort of thing. A registrar, Gandi, Namecheap, or any other ICANN-accredited seller, is who you buy the name from and where you manage renewals. You, the registrant, hold the registration contract and show up as the named entity in WHOIS or RDAP records. ICANN sits above the lot of it as the policy authority the registry agreement ultimately answers to.

Anyone can register a .fun domain. There's no eligibility check, no gatekeeping. Several registrars confirm this outright: names go out first-come, first-served to individuals, businesses and organisations anywhere in the world. Nobody's asking for proof of residency, trademark paperwork, or a stated purpose.

The string itself still has to follow the registry's rules, though. Names run from 3 to 63 characters and can mix letters, numbers and hyphens, but a hyphen can't sit in the first, last, or the third-and-fourth positions together. Support for internationalised domain names (IDNs) is a bit of a muddle, some registrars say yes, Gandi says no, so don't assume either way. Ask whoever you're buying from before you get your heart set on an accented name.

Then there's the premium tier, which sits outside the standard rules entirely. The registry decides which strings count as premium, and prices those accordingly, often well above the usual registration or renewal cost. Most registrars will tell you upfront if a name you want falls into this bracket, so it's worth checking before you get to checkout.

Transfers follow the usual ICANN routine: unlock the domain, grab the authorisation (EPP/TAC) code from your current registrar, then confirm the move with the new one. Registrars charge a transfer fee, shown in the price table on this page, and most renew the domain for the minimum term when the transfer completes, so a transfer effectively counts as a renewal too.

Registration terms run 1 to 10 years, set when you register and adjustable at renewal, according to Gandi. Grace periods and redemption terms are not fixed by the registry, they vary by registrar. Registrar terms typically describe a grace period of around 40 days followed by a 30-day redemption window, with restore charges that differ widely from one registrar to the next and sit well above the renewal price. There is no single published redemption cost, so check your own registrar's terms rather than assuming a figure.

Nothing in the available documentation spells out a registry-level list of locks beyond the standard ICANN transfer rules, and Radix has not published one authoritative restore fee. At least one registrar describes owner (registrant) changes as free, but that is a registrar policy, not a rule set by the registry.

Most real-world .fun sites cluster around gaming, entertainment and side projects. The registry itself points to pocketgamer.fun as a mobile-gaming site built on the extension, and neal.fun turns up on the .fun marketing site as an example of a playful, interactive project using it as the main address. The registry's promotional site, get.fun, also flags a project called speedcircuit.fun. Worth noting: in every case, .fun is the front door, not a redirect bolted on for fun (pun intended).

A few things to check before you commit, rather than assume. Nothing in the registry's documentation suggests .fun carries any special HTTPS or HSTS requirement, so a standard TLS setup is fine. Email deliverability is the bigger wildcard: newer gTLDs sometimes get flagged more aggressively by spam filters that still trust older extensions by default, so test your outbound mail properly if you're sending from a .fun address rather than hoping for the best. Given the tone the extension carries, .fun suits a hobby or entertainment project as a primary domain far better than it suits anything transactional or formal. One naming tip worth following: don't stack the word "fun" into the name itself (fungames.fun), the extension already says it, and repeating it just reads as padding.