pr zone: The server(s) were not responsive to queries over UDP. See RFC 1035, Sec. 4.2. (2001:500:26::17)
pr/NS: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (2001:500:26::17, UDP_-_NOEDNS_)
Warnings (3)
pr/DS (alg 8, id 5134): 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. (193.0.14.129, UDP_-_EDNS0_4096_D_KN)
pr/DS (alg 8, id 5134): 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. (193.0.14.129, UDP_-_EDNS0_4096_D_KN)
pr/DS has warnings; select the "Denial of existence" DNSSEC option to see them.