umich.edu
Updated:
2024-08-11 16:16:37 UTC (102 days ago)
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Notices
DNSSEC Authentication Chain
RRset status
Secure (6)
- umich.edu/A
- umich.edu/AAAA
- umich.edu/MX
- umich.edu/NS
- umich.edu/SOA
- umich.edu/TXT
DNSKEY/DS/NSEC status
Secure (9)
- ./DNSKEY (alg 8, id 20038)
- ./DNSKEY (alg 8, id 20326)
- edu/DNSKEY (alg 13, id 30299)
- edu/DNSKEY (alg 13, id 35663)
- edu/DS (alg 13, id 35663)
- umich.edu/DNSKEY (alg 13, id 58714)
- umich.edu/DNSKEY (alg 13, id 59687)
- umich.edu/DS (alg 13, id 41530)
- umich.edu/DS (alg 13, id 58714)
Non_existent (1)
- umich.edu/DNSKEY (alg 13, id 41530)
Delegation status
Secure (2)
- . to edu
- edu to umich.edu
Notices
Errors (3)
- umich.edu zone: The server(s) were not responsive to queries over UDP. See RFC 1035, Sec. 4.2. (2607:f018:fffd:53::5, 2607:f018:fffd:53::14)
- umich.edu/A: The UDP connection was refused (ECONNREFUSED). See RFC 1035, Sec. 4.2. (2607:f018:fffd:53::5, 2607:f018:fffd:53::14, UDP_-_EDNS0_4096_D_KN)
- umich.edu/NS: The UDP connection was refused (ECONNREFUSED). See RFC 1035, Sec. 4.2. (2607:f018:fffd:53::5, 2607:f018:fffd:53::14, UDP_-_EDNS0_4096_D_KN)
Warnings (4)
- edu to umich.edu: The following NS name(s) were found in the authoritative NS RRset, but not in the delegation NS RRset (i.e., in the edu zone): umich-edu.dns.umich.org See RFC 1034, Sec. 4.2.2.
- edu to umich.edu: The following NS name(s) were found in the delegation NS RRset (i.e., in the edu zone), but not in the authoritative NS RRset: dns1.itd.umich.edu See RFC 1034, Sec. 4.2.2.
- edu/DS (alg 13, id 35663): The server appears to support DNS cookies but did not return a COOKIE option. See RFC 7873, Sec. 5.2.3. (2001:500:2f::f, UDP_-_EDNS0_4096_D_KN)
- edu/DS (alg 13, id 35663): The server appears to support DNS cookies but did not return a COOKIE option. See RFC 7873, Sec. 5.2.3. (2001:500:2f::f, UDP_-_EDNS0_4096_D_KN)
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