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.
eu to europa.eu: The following NS name(s) were found in the delegation NS RRset (i.e., in the eu zone), but not in the authoritative NS RRset: ns3bru.europa.eu, ans1.cw.net, ans2.cw.net See RFC 1034, Sec. 4.2.2.
europa.eu/NS: No response was received until the UDP payload size was decreased, indicating that the server might be attempting to send a payload that exceeds the path maximum transmission unit (PMTU) size. See RFC 6891, Sec. 6.2.6. (217.32.105.91, UDP_-_EDNS0_4096_D_KN)