NSEC3 proving non-existence of uni-tuebingen.de/DS
de/DNSKEY (alg 8, id 26755)
de/DNSKEY (alg 8, id 64125)
de/DS (alg 8, id 26755)
Delegation status
Insecure (1)
de to uni-tuebingen.de
Secure (1)
. to de
Notices
Errors (5)
de zone: The server(s) were not responsive to queries over UDP. (2a02:568:0:2::53)
uni-tuebingen.de/DNSKEY: No response was received from the server over UDP (tried 4 times). (2001:7c0::53:10, 2001:7c0:0:253::133, 2001:7c0:300c:137::8602:c803, UDP_-_EDNS0_512_D_KN)
uni-tuebingen.de/MX: No response was received from the server over UDP (tried 4 times). (2001:7c0:0:253::133, 2001:7c0:300c:137::8602:c803, UDP_-_EDNS0_512_D_KN)
uni-tuebingen.de/NS: No response was received from the server over UDP (tried 12 times). (2001:7c0:300c:137::8602:c804, UDP_-_NOEDNS_)
uni-tuebingen.de/SOA: No response was received from the server over TCP (tried 3 times). (2001:7c0:0:253::133, TCP_-_EDNS0_4096_D_N)
Warnings (9)
de to uni-tuebingen.de: 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. (2003:8:14::53, UDP_-_EDNS0_4096_D_KN)
uni-tuebingen.de/A: 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). (2001:7c0:300c:137::8602:c803, UDP_-_EDNS0_4096_D_KN)
uni-tuebingen.de/MX: 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). (2001:7c0:300c:137::8602:c804, UDP_-_EDNS0_4096_D_KN)
uni-tuebingen.de/MX: 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. (2001:7c0:300c:137::8602:c803, UDP_-_EDNS0_4096_D_KN)
uni-tuebingen.de/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). (2001:7c0:300c:137::8602:c803, UDP_-_EDNS0_4096_D_KN)
uni-tuebingen.de/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). (2001:7c0:0:253::133, 2001:7c0:300c:137::8602:c804, UDP_-_EDNS0_4096_D_KN, UDP_-_EDNS0_4096_D_KN_0x20)
uni-tuebingen.de/SOA: 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. (2001:7c0::53:10, 2001:7c0:0:253::133, 2001:7c0:300c:137::8602:c803, UDP_-_EDNS0_4096_D_KN)
uni-tuebingen.de/TXT: 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). (2001:7c0:300c:137::8602:c803, UDP_-_EDNS0_4096_D_KN)
uni-tuebingen.de/TXT: 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. (2001:7c0:0:253::133, 2001:7c0:300c:137::8602:c804, UDP_-_EDNS0_4096_D_KN)