Guidelines for .eu in Cyrillic

This page contains the official guidelines regarding .eu in Cyrillic, or .ею. The information on this page is only available in English.

Registrar accreditation

Accredited registrars or registrars currently undergoing accreditation for the .eu extension are accredited for the .ею extension by default. No extra pre-payment is required. The registry-registrar agreement will be reviewed accordingly for future accreditations.

Policies and procedures

All policies, procedures and features currently available for .eu such as transfers, bulk transfers, multiyear, DNSSEC, registry lock, etc., also apply to .ею (Cyrillic string).

The current .eu Registration Policy WHOIS Policy and Terms & Conditions apply to domain names registered under .ею.


The current Alternative Dispute Resolution is available for .ею. The EURid “support scheme” to the ADR is also available to domain names registered under .ею for possible ADR.

Domain name script

The script of the second level domain name must match the script of the TLD extension (.eu, .ею). In other words, if anyone registers abc, they get (with the Latin TLD extension). If the domain name being registered is in Cyrillic script, the script at the top-level will be .ею.

A registrar wishing to register an exclusively numeric domain name - possibly including hyphens - should specify the TLD extension. In the case that the extension is not specified, the .eu (Latin string) extension will be set by default.

Homoglyph bundling

The homoglyph bundling rules remain the same (EURid continues to bundle domain names registered in Latin, Cyrillic and Greek according to the IDNA 2008 and homoglyph bundling rules that were enforced in H1 2015, taking into account the extension. These can be found HERE. As the Cyrillic extension cannot be confused with the Latin or Greek extensions, EURid assumes that domain names with the Cyrillic extension can never be confused with those in the Latin or Greek extension.

The homoglyph bundling algorithm takes legacy domain names into account. This means that as long as legacy domain names exist, homoglyph bundling will not take the extension into account to determine if a domain name is in the same homoglyph bundle as another domain name. (See below for more information).

Domain name script and legacy from the current domain names database

As of June 1, 2016, EURid has fully enforced the basic rule that the second level script must match the top-level script, in order to eliminate any possible confusion. Please note that .eu domain names registered in Greek script are managed with the current rules. Regarding the current domain names registered in Cyrillic under .eu, EURid has:

  • Informed all registrars and registrants of the changes.
  • Introduced a “script adjustment” phase, to allow registrars and registrants to adopt the domain name(s) where the top-level script matches the second level script. The “new” domain names under the Cyrillic extension have an initial term of three years free of charge. The switch (“cloning”) was made under EURid’s supervision during the maintenance window when .ею went live on June 1, 2016. All Cyrillic domain were “cloned”, a process where the Latin extension was replaced by the Cyrillic extension, and all linked contacts were copied. Name server information and DNS key information was not copied, as this information depends on the DNS setup of the registrar.
  • During the start of the phased plan, EURid activated all Cyrillic domain names that have been cloned from .eu to .ею. The original and cloned domain names co-exist, and are maintained by the registrar independently of one another. During the script adjustment phase, registrars do not have to pay for cloned domain names. A “cloned” domain name – meaning a Cyrillic domain recreated to be identical in terms of registrant and registrar data, but now with the Cyrillic extension – behaves as would any other domain name. Thus, registrars can put the “cloned” domain name into quarantine. The domain name will then be released after 40 days if not reactivated or transferred from quarantine. All the special statuses like seize, withdraw, on hold, etc., work as well. With that being said, a new domain name cannot be re-registered again as long as the “original” – otherwise known as legacy – Cyrillic domain name under the .eu extension still exists, as homoglyph bundling does not take the extension into account until the respective legacy domain name has been deleted. At the end of the three year term, all legacy domain names will be deleted by EURid unless the registrar or registrant has already done so beforehand.
  • When the registrar deletes the original Cyrillic domain name under the .eu extension, it cannot be registered again, as it would break the “no script mixing” rule.
    For example: юю.eu is cloned into юю.ею. Subsequently, the registrar deletes юю.ею. The domain goes into quarantine, and 40 days later it is released. This domain cannot be registered by anybody as long as юю.eu exists. Should юю.eu also be deleted, and thus enter into quarantine, then only юю.ею can be registered. Юю.eu can no longer be registered as it breaks the “no script mixing” rule).

Specific cases:

  • Domain names in the Cyrillic script that were in quarantine at the launch of .ею were not cloned nor activated under the new extension. If the domain name is reactivated, the registrar should contact EURid for cloning.
  • Active domain names in the Cyrillic script that belonged to a terminated registrar account that had a future delete date corresponding to the end of their term were not cloned nor activated under the new extension.
  • At the launch of .ею, “on hold” domain names in the Cyrillic script were cloned, but the “on hold” status remains for these newly cloned domains.
  • At the launch of .ею, “quarantine on hold” domain names in the Cyrillic script were not cloned.
  • At the launch of .ею, “withdrawn” domain names in the Cyrillic script were not cloned.
  • At the launch of .ею, “suspended” domain names in the Cyrillic script were not cloned.
  • At the launch of .ею, “seized” domain names in the Cyrillic script were not cloned.
  • At the launch of .ею, “numerical” domain names were not cloned.
  • At the launch of .ею, “reserved and blocked” domain names in Cyrillic script use the .ею extension.
  • At the launch of .ею, “numerical” domain names marked as reserved, such as, were not cloned.


When conducting a DAS request, the whole domain name is taken into account, including the extension. When no extension is provided by the user, it will be added by the system according to the rule outlined above; the script of the domain name defines the extension and purely numerical domain names receive a .eu extension by default. The DAS output only has three different possible values: NOT ALLOWED, NOT AVAILABLE and AVAILABLE.

A domain name that violates the “no script mixing rule” (e.g. always returns a NOT ALLOWED value, as this name cannot be registered under any circumstances.

For a WHOIS request, the same rule is applied in order to add the extension if it’s missing. The textual WHOIS (port 43) will keep its minimal output and refer to the web-based WHOIS for more detailed information.

Lastly, the web-based WHOIS allows the user to provide a specific extension for a domain name, or leave it up to the system to define the extension (again using the same rules as described above). However, the web-based WHOIS always shows the domain names that are in the same homoglyph bundle. You can find more information about these domain names by simply clicking on them.

For example, suppose юю.ею and юю.eu are both registered, as would usually be the case if юю.eu was registered beforehand. In this case, when conducting a web-based WHOIS request for юю.еu, you will find detailed information regarding this domain name, while also seeing юю.ею as a name that is currently registered and is in the same homoglyph bundle. This is also true when the search term is юю.ею. If the search term is юю, the system will turn this into юю.ею.