irs.gov zone: The server(s) were not responsive to queries over TCP. See RFC 1035, Sec. 4.2. (152.216.13.164, 152.216.13.165, 2610:30:0:13::164, 2610:30:0:13::165)
irs.gov zone: The server(s) were not responsive to queries over UDP. See RFC 1035, Sec. 4.2. (152.216.7.164, 152.216.7.165, 152.216.11.132, 152.216.11.133, 2610:30:2000:53::90, 2610:30:2000:53::91, 2610:30:4000:53::90, 2610:30:4000:53::91)
irs.gov/A: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (152.216.7.164, 152.216.7.165, 152.216.11.132, 152.216.11.133, 152.216.13.164, 2610:30:2000:53::90, 2610:30:2000:53::91, 2610:30:4000:53::90, 2610:30:4000:53::91, UDP_-_NOEDNS_)
irs.gov/DNSKEY: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (2610:30:0:13::164, 2610:30:0:13::165, UDP_-_EDNS0_4096_D_KN)
irs.gov/NS: No response was received from the server over UDP (tried 13 times). See RFC 1035, Sec. 4.2. (152.216.7.164, 152.216.7.165, 152.216.11.132, 152.216.11.133, 2610:30:2000:53::90, 2610:30:2000:53::91, 2610:30:4000:53::90, 2610:30:4000:53::91, UDP_-_EDNS0_4096_D)
irs.gov/SOA: No response was received from the server over TCP (tried 3 times). See RFC 1035, Sec. 4.2. (152.216.13.164, 152.216.13.165, 2610:30:0:13::164, 2610:30:0:13::165, TCP_-_EDNS0_4096_D_N)
irs.gov/DNSKEY has errors; select the "Denial of existence" DNSSEC option to see them.
irs.gov/CNAME has errors; select the "Denial of existence" DNSSEC option to see them.
2cwqo8ynf9.irs.gov/A has errors; select the "Denial of existence" DNSSEC option to see them.
Warnings (4)
irs.gov/A: 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. (2610:30:0:13::164, UDP_-_EDNS0_4096_D_KN)
irs.gov/NS: No response was received from the server over UDP (tried 6 times) until the COOKIE EDNS option was removed (however, this server appeared to respond legitimately to other queries with the COOKIE EDNS option present). See RFC 6891, Sec. 6.1.2. (2610:30:0:13::164, UDP_-_EDNS0_4096_D_KN)
irs.gov/NS: No response was received from the server over UDP (tried 7 times) until the NSID EDNS option was removed (however, this server appeared to respond legitimately to other queries with the NSID EDNS option present). See RFC 6891, Sec. 6.1.2. (152.216.13.165, UDP_-_EDNS0_4096_D_KN)
irs.gov/CNAME has warnings; select the "Denial of existence" DNSSEC option to see them.