.SU was created on 19 September 1990 for use in the Soviet Union, according to IANA’s records. The country dissolved about fifteen months later; the domain did not. It is still an active top-level domain in the IANA root zone, with roughly 112,000 registered names according to its registry, RIPN.

For a private project, .SU is interesting for practical reasons rather than nostalgia: who runs it, whose rules apply to it, and how search engines read it.

The short answer

  • Search engines treat .SU as generic. Google lists .su among the country codes it handles like .com or .net, so the extension does not tie your site to one country.
  • No ICANN contract and no UDRP. The registry has no registry agreement with ICANN, its registrars are accredited by the registry rather than by ICANN, and trademark disputes go to Russian courts instead of the fast-track UDRP process.
  • No US or EU company in the registration chain. The registry, its registrars and its technical operator are Russian. The usual US route of serving an order on Verisign or a US registrar has no counterpart.
  • Russian law applies. .SU is part of Russia’s national domain zone. Its rules require suspension when Russian state bodies demand it, so it is not a lawless zone.
  • You don’t hand over your identity at xUID. A trustee supplies the registration identity. Base registration costs $75/year.

Generic in search, like .io or .co

Google treats most country-code domains as a signal that a site is meant for that country. It makes exceptions for a published list of codes used internationally, and .su is on it, alongside .io, .co, .me and .tv. Google’s international-site documentation carries the list. .RU is not on it.

That makes .SU workable for an English-language publication, a multilingual brand or any project with readers in several countries. It is not a ranking bonus. Our .RU and .SU search guide covers the distinction in more detail.

Run by its own registry, outside ICANN’s contracts

ICANN’s contracts cover generic domains: registry agreements, the Registrar Accreditation Agreement and the Uniform Domain-Name Dispute-Resolution Policy all apply to names like .com. Country-code registries set their own rules.

For .SU, IANA lists RIPN (ROSNIIROS) in Moscow as the manager. ICANN’s list of ccTLD agreements has nothing for .su, and RIPN accredits the registrars itself. .SU is also absent from WIPO’s list of ccTLDs that use UDRP. Under RIPN’s published court-dispute policy, the registry and registrars do not decide disputes themselves. They act on Russian court rulings.

ICANN still matters in one respect: .SU depends on its place in the root zone. Our guide Is .SU outside ICANN? explains what that means and how the retirement question has been handled.

No US or EU registry to serve

Most US domain seizures work through the companies that run a name. For .com and .net, warrants direct Verisign to lock the domain and point it elsewhere. US cybersquatting law also lets courts act against a domain based on where its registry or registrar is located, under 15 U.S.C. §1125(d)(2).

A .SU domain has no US registry or registrar to carry out such an order. The same is true for the EU: no EU company is in the registration chain, and we have found no EU measure against the .SU registry. Two guides explain the limits:

The limits matter. Your hosting, CDN, email and payment providers remain under whatever law governs them. The domain is one layer of your setup, not all of it.

What .SU does not give you

A lawless zone. Since 1 September 2026, .SU registrations follow Russian Government Decree No. 1119. It requires a registrar to suspend a domain on a decision of a Russian law-enforcement or security body, a demand from Roskomnadzor (the national internet regulator) or a request from the national computer-incident centre. Phishing, malware and child sexual abuse material are also grounds for suspension. Is .SU a lawless offshore haven? goes through these rules.

A permanent guarantee. The extension’s future depends on the code SU keeping its reserved status in the ISO country-code standard. The current position is stable, but it is a dependency.

A blank reputation. Security reporting has long linked .SU with cybercrime forums, and botnet operators still use it. Before relying on a new .SU address, test that your email is delivered and that your site opens on the networks your readers use.

Hosting. A domain registration does not include a server. Connect the name to your existing host or choose xUID hosting separately.

How anonymous .SU registration works at xUID

Since 1 September 2026, every .SU registrant must be identified through ESIA, Russia’s state services identity system, at registration and every year afterwards (Decree No. 1119, clauses 12 and 28). The Coordination Center’s FAQ confirms the rules are the same for .RU, .РФ and .SU, and that ESIA is not available to foreigners without Russian status.

A trustee arrangement handles this. The identity on record is supplied through your plan, so you open an xUID account with an email and password and do not upload identity documents. The .SU ESIA guide explains your side of the process.

Plan Registration identity Annual total for .SU
Base Shared trustee $75
Private Identity Trustee dedicated to your account $825 ($75 + $750)
Full Bulletproof Exclusive identity, abuse-complaint handling within the service agreement, priority support $8,075 ($75 + $8,000)

Renewal uses the same fees. Choose the plan before registering, because Base domains cannot move to a paid plan later. The .SU trustee page compares the plans in more detail.

Is .SU right for your project?

.SU suits a project that wants a short, recognisable name with no country signal in search. It also suits buyers who want a registry outside US and EU companies and a dispute process that runs through courts rather than UDRP. The registration needs to stay within Russian rules.

Look elsewhere if you need a strong country signal for a market other than Russia, or a UDRP-style process to recover a name from a cybersquatter. The same applies if your project would breach the Russian rules above: the registry acts on them directly.

When you have a shortlist, search .SU names and choose the registration identity before you pay.

Anonymous .RU domains $50/year. .SU domains $75/year.

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