usna.edu
Updated:
2025-11-19 09:06:28 UTC (22 days ago)
Go to most recent »
Notices
DNSSEC Authentication Chain
RRset status
Secure (6)
- usna.edu/A
- usna.edu/MX
- usna.edu/NS
- usna.edu/NSEC3PARAM
- usna.edu/SOA
- usna.edu/TXT
DNSKEY/DS/NSEC status
Secure (11)
- ./DNSKEY (alg 8, id 20326)
- ./DNSKEY (alg 8, id 38696)
- ./DNSKEY (alg 8, id 61809)
- edu/DNSKEY (alg 13, id 35663)
- edu/DNSKEY (alg 13, id 35999)
- edu/DS (alg 13, id 35663)
- usna.edu/DNSKEY (alg 8, id 23433)
- usna.edu/DNSKEY (alg 8, id 31689)
- usna.edu/DNSKEY (alg 8, id 43510)
- usna.edu/DNSKEY (alg 8, id 45960)
- usna.edu/DS (alg 8, id 43510)
Delegation status
Secure (2)
- . to edu
- edu to usna.edu
Notices
Errors (8)
- edu zone: The server(s) responded over TCP with a malformed response or with an invalid RCODE. See RFC 1035, Sec. 4.1.1. (192.5.6.30, 192.12.94.30, 192.26.92.30, 192.33.14.30, 192.35.51.30, 192.41.162.30, 192.43.172.30, 192.48.79.30, 192.52.178.30, 192.54.112.30, 2001:500:856e::30, 2001:500:d937::30, 2001:501:b1f9::30, 2001:502:8cc::30, 2001:503:231d::2:30, 2001:503:83eb::30, 2001:503:d414::30, 2001:503:eea3::30)
- edu/DS: No response was received from the server over UDP (tried 4 times). See RFC 1035, Sec. 4.2. (192.5.5.241, 192.33.4.12, 192.36.148.17, 192.58.128.30, 192.112.36.4, 192.203.230.10, 198.41.0.4, 198.97.190.53, 199.7.83.42, 202.12.27.33, 2001:500:1::53, 2001:500:2::c, 2001:500:12::d0d, 2001:500:2d::d, 2001:500:2f::f, 2001:500:9f::42, 2001:500:a8::e, 2001:503:c27::2:30, 2001:503:ba3e::2:30, 2001:7fd::1, 2001:7fe::53, 2001:dc3::35, 2801:1b8:10::b, UDP_-_EDNS0_4096_D_KN)
- edu/DS: No response was received from the server over UDP (tried 5 times). See RFC 1035, Sec. 4.2. (170.247.170.2, UDP_-_EDNS0_4096_D_KN)
- usna.edu/CDNSKEY has errors; select the "Denial of existence" DNSSEC option to see them.
- usna.edu/AAAA has errors; select the "Denial of existence" DNSSEC option to see them.
- zci23.uwftn.usna.edu/A has errors; select the "Denial of existence" DNSSEC option to see them.
- usna.edu/CNAME has errors; select the "Denial of existence" DNSSEC option to see them.
- usna.edu/CDS has errors; select the "Denial of existence" DNSSEC option to see them.
Warnings (7)
- edu/DNSKEY (alg 13, id 35663): 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. (192.5.6.30, 192.12.94.30, 192.26.92.30, 192.33.14.30, 192.35.51.30, 192.41.162.30, 192.43.172.30, 192.48.79.30, 192.52.178.30, 192.54.112.30, 2001:500:856e::30, 2001:500:d937::30, 2001:501:b1f9::30, 2001:502:8cc::30, 2001:503:231d::2:30, 2001:503:83eb::30, 2001:503:d414::30, 2001:503:eea3::30, UDP_-_EDNS0_4096_D_KN)
- edu/DNSKEY (alg 13, id 35999): 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. (192.5.6.30, 192.12.94.30, 192.26.92.30, 192.33.14.30, 192.35.51.30, 192.41.162.30, 192.43.172.30, 192.48.79.30, 192.52.178.30, 192.54.112.30, 2001:500:856e::30, 2001:500:d937::30, 2001:501:b1f9::30, 2001:502:8cc::30, 2001:503:231d::2:30, 2001:503:83eb::30, 2001:503:d414::30, 2001:503:eea3::30, UDP_-_EDNS0_4096_D_KN)
- usna.edu/CDNSKEY has warnings; select the "Denial of existence" DNSSEC option to see them.
- usna.edu/AAAA has warnings; select the "Denial of existence" DNSSEC option to see them.
- zci23.uwftn.usna.edu/A has warnings; select the "Denial of existence" DNSSEC option to see them.
- usna.edu/CNAME has warnings; select the "Denial of existence" DNSSEC option to see them.
- usna.edu/CDS has warnings; select the "Denial of existence" DNSSEC option to see them.
JavaScript is required to make the graph below interactive.
