us-cert.gov
Updated:
2023-07-27 12:56:42 UTC (484 days ago)
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Notices
DNSSEC Authentication Chain
RRset status
Insecure (5)
- us-cert.gov/A
- us-cert.gov/MX
- us-cert.gov/NS
- us-cert.gov/SOA
- us-cert.gov/TXT
Secure (1)
- gov/SOA
DNSKEY/DS/NSEC status
Secure (6)
- ./DNSKEY (alg 8, id 11019)
- ./DNSKEY (alg 8, id 20326)
- NSEC3 proving non-existence of us-cert.gov/DS
- gov/DNSKEY (alg 8, id 40921)
- gov/DNSKEY (alg 8, id 7698)
- gov/DS (alg 8, id 7698)
Delegation status
Insecure (1)
- gov to us-cert.gov
Secure (1)
- . to gov
Notices
Errors (6)
- NSEC3 proving non-existence of us-cert.gov/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 us-cert.gov/DS: An iterations count of 0 must be used in NSEC3 records to alleviate computational burdens. See RFC 9276, Sec. 3.1.
- us-cert.gov zone: The server(s) were not responsive to queries over UDP. See RFC 1035, Sec. 4.2. (2600:1406:32::40)
- us-cert.gov/A: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (2600:1406:32::40, UDP_-_NOEDNS_)
- us-cert.gov/NS: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (2600:1406:32::40, UDP_-_NOEDNS_)
- us-cert.gov/DS has errors; select the "Denial of existence" DNSSEC option to see them.
Warnings (3)
- NSEC3 proving non-existence of us-cert.gov/DS: The salt value for an NSEC3 record should be empty. See RFC 9276, Sec. 3.1.
- NSEC3 proving non-existence of us-cert.gov/DS: The salt value for an NSEC3 record should be empty. See RFC 9276, Sec. 3.1.
- us-cert.gov/DS has warnings; select the "Denial of existence" DNSSEC option to see them.
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