isc.org zone: The server(s) were not responsive to queries over TCP. See RFC 1035, Sec. 4.2. (51.75.79.143)
isc.org/SOA: No response was received from the server over TCP (tried 3 times). See RFC 1035, Sec. 4.2. (51.75.79.143, TCP_-_EDNS0_4096_D)
isc.org/SOA: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (51.75.79.143, UDP_-_NOEDNS_)
kij0qd6mcy.isc.org/A has errors; select the "Denial of existence" DNSSEC option to see them.
Warnings (6)
RRSIG isc.org/DS alg 7, id 22064: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 7 (RSASHA1NSEC3SHA1). See RFC 8624, Sec. 3.1.
RRSIG org/DNSKEY alg 7, id 17883: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 7 (RSASHA1NSEC3SHA1). See RFC 8624, Sec. 3.1.
RRSIG org/DNSKEY alg 7, id 17883: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 7 (RSASHA1NSEC3SHA1). See RFC 8624, Sec. 3.1.
RRSIG org/DNSKEY alg 7, id 17883: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 7 (RSASHA1NSEC3SHA1). See RFC 8624, Sec. 3.1.
RRSIG org/DNSKEY alg 7, id 17883: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 7 (RSASHA1NSEC3SHA1). See RFC 8624, Sec. 3.1.
isc.org/DS has warnings; select the "Denial of existence" DNSSEC option to see them.