./DNSKEY: No response was received from the server over UDP (tried 4 times). See RFC 1035, Sec. 4.2. (192.33.4.12, UDP_-_EDNS0_512_D_KN)
Warnings (3)
./DNSKEY (alg 8, id 20326): 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. (192.33.4.12, UDP_-_EDNS0_4096_D_KN)
./DNSKEY (alg 8, id 61050): 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. (192.33.4.12, UDP_-_EDNS0_4096_D_KN)
spikar.gr/CDS: The contents of the DS RRset are inconsistent with those of the CDS RRset. See RFC 7344, Sec. 3, RFC 7344, Sec. 5.