us-cert.gov
Updated:
2023-05-18 15:56:46 UTC (556 days ago)
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Notices
DNSSEC Authentication Chain
RRset status
Secure (3)
- us-cert.gov/A
- us-cert.gov/NS
- us-cert.gov/SOA
DNSKEY/DS/NSEC status
Secure (9)
- ./DNSKEY (alg 8, id 20326)
- ./DNSKEY (alg 8, id 60955)
- gov/DNSKEY (alg 8, id 50011)
- gov/DNSKEY (alg 8, id 7698)
- gov/DS (alg 8, id 7698)
- us-cert.gov/DNSKEY (alg 8, id 30121)
- us-cert.gov/DNSKEY (alg 8, id 56448)
- us-cert.gov/DS (alg 8, id 30121)
- us-cert.gov/DS (alg 8, id 30121)
Delegation status
Secure (2)
- . to gov
- gov to us-cert.gov
Notices
Errors (13)
- us-cert.gov zone: The server(s) were not responsive to queries over TCP. See RFC 1035, Sec. 4.2. (208.73.184.110, 208.73.191.39)
- us-cert.gov zone: The server(s) were not responsive to queries over UDP. See RFC 1035, Sec. 4.2. (2620:112:5000:1::2)
- us-cert.gov/A: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (2620:112:5000:1::2, UDP_-_NOEDNS_)
- us-cert.gov/MX: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (208.73.184.110, 208.73.191.39, UDP_-_NOEDNS_)
- us-cert.gov/MX: No response was received from the server over UDP (tried 4 times). See RFC 1035, Sec. 4.2. (208.73.184.110, 208.73.191.39, UDP_-_EDNS0_512_D_KN)
- us-cert.gov/NS: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (2620:112:5000:1::2, UDP_-_NOEDNS_)
- us-cert.gov/NSEC3PARAM: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (208.73.184.110, 208.73.191.39, UDP_-_NOEDNS_)
- us-cert.gov/SOA: No response was received from the server over TCP (tried 3 times). See RFC 1035, Sec. 4.2. (208.73.184.110, 208.73.191.39, TCP_-_EDNS0_4096_D_N)
- us-cert.gov/SOA: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (208.73.184.110, 208.73.191.39, UDP_-_NOEDNS_, UDP_-_NOEDNS__0x20)
- us-cert.gov/TXT: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (208.73.184.110, 208.73.191.39, UDP_-_NOEDNS_)
- us-cert.gov/AAAA has errors; select the "Denial of existence" DNSSEC option to see them.
- us-cert.gov/CNAME has errors; select the "Denial of existence" DNSSEC option to see them.
- 6s5yocw82p.us-cert.gov/A has errors; select the "Denial of existence" DNSSEC option to see them.
Warnings (6)
- us-cert.gov/DS (alg 8, id 30121): DNSSEC implementers are prohibited from implementing signing with DS algorithm 1 (SHA-1). See RFC 8624, Sec. 3.2.
- us-cert.gov/DS (alg 8, id 30121): DNSSEC implementers are prohibited from implementing signing with DS algorithm 1 (SHA-1). See RFC 8624, Sec. 3.2.
- us-cert.gov/DS (alg 8, id 30121): DS records with digest type 1 (SHA-1) are ignored when DS records with digest type 2 (SHA-256) exist in the same RRset. See RFC 4509, Sec. 3.
- us-cert.gov/DS (alg 8, id 30121): DS records with digest type 1 (SHA-1) are ignored when DS records with digest type 2 (SHA-256) exist in the same RRset. See RFC 4509, Sec. 3.
- us-cert.gov/AAAA has warnings; select the "Denial of existence" DNSSEC option to see them.
- 6s5yocw82p.us-cert.gov/A has warnings; select the "Denial of existence" DNSSEC option to see them.
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