The inter-institutional site (https://european-union.europa.eu) is the official website of the European Union. It is a good starting point if you are looking for information and services provided by the EU but you don't know your way around our sites.
Visit https://european-union.europa.eu and consult this guide's section about the EU branded core website.
The European Commission's communication department (DG Communication) manages the EU website on behalf of all EU institutions, under the supervision of the Inter-institutional Online Communication Committee (EU login required).
Need further assistance on this topic? Please contact the team in charge of Europa Domain Management (EU Login required).