Infrastructure and services

Look up services

You can look up the information on a .eu and .ею (Cyrillic script) domain name or check if it is available for registration by using WHOIS.

If you wish to contact the holder of a specific domain name, you can query the name in our WHOIS database. If the domain name holder is a company or organisation, you will be able to see a physical address as well as a telephone number, fax number and email address. If the domain name holder is a private person, you will be able to see only an email address and a preferred language for correspondence.

If the domain name holder is a private person and you need more contact details than those provided, you can send us a request for the disclosure of personal data. The request must explain your reasons for needing the data and specify how the data will be used.

Complete the request form  and email it to or fax it to +32 2 401 27 51. Your request will be considered and you will be informed whether it has been granted or not.


EURid offers resolution of domain names both via IPv4 and IPv6 addresses. Domain name holders have always been able to use IPv6 addresses for their dedicated name servers, as EURid registration systems have had IPv6-capable name servers since .eu's launch in 2006.

If you are connected to the Internet via IPv6, you will automatically reach on our IPv6 address.

Name servers

Registered .eu and .ею domain names are stored on 4 unicast name servers, located in Europe, and 2 anycast meshes located throughout the world (see the table below). EURid's name servers are updated dynamically. This means that when you register a domain name it is activated almost immediately. Any changes made to existing domain names are effective immediately as well.





IP address    


The Netherlands


Czech Republic




United Kingdom





YADIFA name server

YADIFA is EURid's very own open source name server implementation. We developed YADIFA to increase the robustness of the .eu name server infrastructure by adding a stable alternative to the other name server implementations we were using.

We liked YADIFA so much that we wanted to share it with you.

YADIFA was written from scratch. This means that it doesn't inherit any of the potential weaknesses present in existing software. It supports all the current protocols, including DNSSEC with NSEC and NSEC3. It's RFC compliant.

And just like other implementations, YADIFA is portable across multiple operating systems, including Linux, FreeBSD, OpenBSD and Solaris.

For more information on YADIFA and the source code, please visit