org zone: The server(s) were not responsive to queries over UDP. See RFC 1035, Sec. 4.2. (2001:500:c::1)
htn7zl82av.defcon.org/A has errors; select the "Denial of existence" DNSSEC option to see them.
defcon.org/CNAME has errors; select the "Denial of existence" DNSSEC option to see them.
Warnings (3)
defcon.org/SOA: 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. (64.87.1.238, UDP_-_EDNS0_4096_D_KN)
htn7zl82av.defcon.org/A has warnings; select the "Denial of existence" DNSSEC option to see them.
defcon.org/CNAME has warnings; select the "Denial of existence" DNSSEC option to see them.