eu zone: The server(s) were not responsive to queries over UDP. See RFC 1035, Sec. 4.2. (2001:978:2:1::93:2)
europa.eu/CNAME has errors; select the "Denial of existence" DNSSEC option to see them.
Warnings (3)
eu to europa.eu: The following NS name(s) were found in the authoritative NS RRset, but not in the delegation NS RRset (i.e., in the eu zone): ns4az2.europa.eu See RFC 1034, Sec. 4.2.2.
net to cloudfront.net: Authoritative AAAA records exist for ns-666.awsdns-19.net, but there are no corresponding AAAA glue records. See RFC 1034, Sec. 4.2.2.
europa.eu/CNAME has warnings; select the "Denial of existence" DNSSEC option to see them.