uni-tuebingen.de
Updated:
2023-05-23 08:22:54 UTC (548 days ago)
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Notices
DNSSEC Authentication Chain
RRset status
Insecure (6)
- uni-tuebingen.de/A
- uni-tuebingen.de/AAAA
- uni-tuebingen.de/MX
- uni-tuebingen.de/NS
- uni-tuebingen.de/SOA
- uni-tuebingen.de/TXT
Secure (1)
- de/SOA
DNSKEY/DS/NSEC status
Secure (6)
- ./DNSKEY (alg 8, id 20326)
- ./DNSKEY (alg 8, id 60955)
- 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 (9)
- NSEC3 proving non-existence of uni-tuebingen.de/DS: An iterations count of 0 must be used in NSEC3 records to alleviate computational burdens. See RFC 9276, Sec. 3.1.
- NSEC3 proving non-existence of uni-tuebingen.de/DS: An iterations count of 0 must be used in NSEC3 records to alleviate computational burdens. See RFC 9276, Sec. 3.1.
- de zone: The server(s) were not responsive to queries over UDP. See RFC 1035, Sec. 4.2. (2a02:568:0:2::53)
- uni-tuebingen.de/DNSKEY: No response was received from the server over UDP (tried 4 times). See RFC 1035, Sec. 4.2. (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). See RFC 1035, Sec. 4.2. (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). See RFC 1035, Sec. 4.2. (2001:7c0:300c:137::8602:c804, UDP_-_NOEDNS_)
- uni-tuebingen.de/SOA: No response was received from the server over TCP (tried 3 times). See RFC 1035, Sec. 4.2. (2001:7c0:0:253::133, TCP_-_EDNS0_4096_D_N)
- uni-tuebingen.de/DNSKEY has errors; select the "Denial of existence" DNSSEC option to see them.
- uni-tuebingen.de/DS has errors; select the "Denial of existence" DNSSEC option to see them.
Warnings (16)
- NSEC3 proving non-existence of uni-tuebingen.de/DS: The salt value for an NSEC3 record should be empty. See RFC 9276, Sec. 3.1.
- NSEC3 proving non-existence of uni-tuebingen.de/DS: The salt value for an NSEC3 record should be empty. See RFC 9276, Sec. 3.1.
- 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. See RFC 6891, Sec. 6.2.6. (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). See RFC 6891, Sec. 6.1.2. (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). See RFC 6891, Sec. 6.1.2. (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. See RFC 6891, Sec. 6.2.6. (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). See RFC 6891, Sec. 6.1.2. (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). See RFC 6891, Sec. 6.1.2. (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. See RFC 6891, Sec. 6.2.6. (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). See RFC 6891, Sec. 6.1.2. (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. See RFC 6891, Sec. 6.2.6. (2001:7c0:0:253::133, 2001:7c0:300c:137::8602:c804, UDP_-_EDNS0_4096_D_KN)
- uni-tuebingen.de/DNSKEY has warnings; select the "Denial of existence" DNSSEC option to see them.
- bmtuz5e219.uni-tuebingen.de/A has warnings; select the "Denial of existence" DNSSEC option to see them.
- uni-tuebingen.de/NSEC3PARAM has warnings; select the "Denial of existence" DNSSEC option to see them.
- uni-tuebingen.de/DS has warnings; select the "Denial of existence" DNSSEC option to see them.
- uni-tuebingen.de/CNAME has warnings; select the "Denial of existence" DNSSEC option to see them.
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