If you have a domain registered in the .eu tld you need to consider what the outcome of Brexit will be on your right to keep this domain name. The .eu registry has published information for domain holders here: https://eurid.eu/en/register-a-eu-domain/brexit-notice/
Be aware that until how we leave the EU is decided there are no hard facts only possibilities but in any event the long term effect will be that unless the registrant of your domain is based in an EU member state you will no longer be able to keep your domain.
