gov to us-cert.gov: No valid RRSIGs made by a key corresponding to a DS RR were found covering the DNSKEY RRset, resulting in no secure entry point (SEP) into the zone. See RFC 4035, Sec. 2.2, RFC 6840, Sec. 5.11.
us-cert.gov zone: The following NS name(s) did not resolve to address(es): stark.brass.us-cert.gov
us-cert.gov zone: The server(s) were not responsive to queries over TCP. See RFC 1035, Sec. 4.2. (208.73.184.110)
us-cert.gov zone: The server(s) were not responsive to queries over UDP. See RFC 1035, Sec. 4.2. (208.73.191.39, 2620:112:5000:1::2)
us-cert.gov zone: There was an error resolving the following NS name(s) to address(es): greyjoy.brass.us-cert.gov
us-cert.gov/A: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (208.73.191.39, 2620:112:5000:1::2, UDP_-_NOEDNS_)
us-cert.gov/AAAA: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (208.73.184.110, UDP_-_NOEDNS_)
us-cert.gov/DNSKEY: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (208.73.184.110, UDP_-_NOEDNS_)
us-cert.gov/DNSKEY: No response was received from the server over UDP (tried 4 times). See RFC 1035, Sec. 4.2. (208.73.184.110, UDP_-_EDNS0_512_D_KN)
us-cert.gov/MX: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (208.73.184.110, UDP_-_NOEDNS_)
us-cert.gov/MX: No response was received from the server over UDP (tried 4 times). See RFC 1035, Sec. 4.2. (208.73.184.110, UDP_-_EDNS0_512_D_KN)
us-cert.gov/NS: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (208.73.184.110, 208.73.191.39, 2620:112:5000:1::2, UDP_-_NOEDNS_)
us-cert.gov/NSEC3PARAM: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (208.73.184.110, UDP_-_NOEDNS_)
us-cert.gov/SOA: No response was received from the server over TCP (tried 3 times). See RFC 1035, Sec. 4.2. (208.73.184.110, TCP_-_EDNS0_4096_D_N)
us-cert.gov/SOA: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (208.73.184.110, UDP_-_NOEDNS_, UDP_-_NOEDNS__0x20)
us-cert.gov/TXT: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (208.73.184.110, UDP_-_NOEDNS_)
us-cert.gov/CNAME has errors; select the "Denial of existence" DNSSEC option to see them.
us-cert.gov/DNSKEY has errors; select the "Denial of existence" DNSSEC option to see them.
ub9smq6i8h.us-cert.gov/A has errors; select the "Denial of existence" DNSSEC option to see them.