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DNSViz: A DNS visualization tool

airnow.gov

DNSSEC options (hide)
  1. |?|
  2. |?|
  3. |?|
  4. |?|
  5. |?|
  6. |?|
  7. |?|
  8. |?|
  9. |?|
  10. |?|
Notices
DNSSEC Authentication Chain

RRset statusRRset status

Insecure (8)
  • airnow.gov/A
  • airnow.gov/AAAA
  • airnow.gov/NS
  • airnow.gov/SOA
  • airnow.gov/SOA
  • airnow.gov/SOA
  • airnow.gov/SOA
  • airnow.gov/TXT
Secure (1)
  • gov/SOA

DNSKEY/DS/NSEC statusDNSKEY/DS/NSEC status

Secure (8)
  • ./DNSKEY (alg 8, id 20326)
  • ./DNSKEY (alg 8, id 48903)
  • NSEC3 proving non-existence of airnow.gov/DS
  • gov/DNSKEY (alg 8, id 36558)
  • gov/DNSKEY (alg 8, id 40176)
  • gov/DNSKEY (alg 8, id 7698)
  • gov/DS (alg 8, id 7698)
  • gov/DS (alg 8, id 7698)

Delegation statusDelegation status

Insecure (1)
  • gov to airnow.gov
Secure (1)
  • . to gov

NoticesNotices

Errors (3)
  • NSEC3 proving non-existence of airnow.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 airnow.gov/DS: An iterations count of 0 must be used in NSEC3 records to alleviate computational burdens. See RFC 9276, Sec. 3.1.
  • airnow.gov/DS has errors; select the "Denial of existence" DNSSEC option to see them.
Warnings (7)
  • NSEC3 proving non-existence of airnow.gov/DS: The salt value for an NSEC3 record should be empty. See RFC 9276, Sec. 3.1.
  • NSEC3 proving non-existence of airnow.gov/DS: The salt value for an NSEC3 record should be empty. See RFC 9276, Sec. 3.1.
  • gov/DS (alg 8, id 7698): DNSSEC implementers are prohibited from implementing signing with DS algorithm 1 (SHA-1). See RFC 8624, Sec. 3.2.
  • gov/DS (alg 8, id 7698): DNSSEC implementers are prohibited from implementing signing with DS algorithm 1 (SHA-1). See RFC 8624, Sec. 3.2.
  • gov/DS (alg 8, id 7698): 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.
  • gov/DS (alg 8, id 7698): 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.
  • airnow.gov/DS has warnings; select the "Denial of existence" DNSSEC option to see them.

DNSKEY legend

Full legend
SEP bit setSEP bit set
Revoke bit setRevoke bit set
Trust anchorTrust anchor
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DNSSEC authentication graph