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All Commission websites must be hosted on, according to Europa domain and subdomains rules.

In addition: 

  • URLs must always be lower case (to avoid incompatibility between Unix and Windows, respectively case-sensitive and case-insensitive)
  • URLs must always be in English, even when they contain a page in another language (see also Language indicator)
  • multiple words contained in a URL must be separated by a dash/hyphen (-), though the underscore (_) is also accepted
  • URLs must not contain chained multiple words (e. g. europeancommission is wrong, european-commission is correct)
  •  URLs must not contain acronyms, as they are not understood by a broader audience. Exceptions can only be granted for existing URLs already approved in the past.

4th level domains in

Executive agencies of the European Commission and Commission websites with specific technical requirements (such as secured and cloud hosting) can have their own fourth level domain name within the third level domain

Language Indicator

Translated pages must have exactly the same URL of the original page, with the addition of suffix at the end of the page name.

For example: → points to the English page → English page → German page → Slovenian page

The permitted suffixes for Eu-languages are the following (taken from alpha-3/ISO 639-2 Code)

Bulgarian: bg
Spanish: es
Czech: cs
Danish: da
German: de
Estonian: et
Greek: el
English: en
French: fr
Gaelic: ga
Italian: it
Latvian: lv
Lithuanian: lt
Croatian: hr
Hungarian: hu
Maltese: mt
Dutch: nl
Portuguese: pt
Romanian: ro
Slovakia: sk
Slovenian: sl
Finland; fi
Swedish: sv

When listing the available languages, Spanish comes directly after Bulgarian (because of castillian spanish). Nevertheless the prefix is _es and not _cs

For non-EU languages, the following suffixes must be used:

Arabic: ar
Chinese (simplified): zh-hans
Chinese (traditional): zh-hant

For other languages, see the file DGT-languages

Printing URLs

In case you need to print or advertise or publish URLs, always use lower case (e. g. and not nor EC.EUROPA.EU)

Drupal Instances

Urls containing the node keyword should rewrite to the human-readible version of the url. For example: →


  • if possible, avoid using stopwords (e. g. "and", "or", "but"...) in URLs


Please see:

Contact and support

If you require further assistance, please contact:

Comm Europa Management

European Commission
DG Communication 
Unit B.3 
Europa Web Communication 

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The Europa Web Guide is the official rulebook for the European Commission's web presence, covering editorial, legal, technical, visual and contractual aspects.
All European Commission web sites must observe the rules and guidelines it contains.
Web practitioners are invited to observe its contents and keep abreast of updates. More information about the web guide.