View on GitHub

DNSViz: A DNS visualization tool

gpo.gov

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

RRset statusRRset status

Secure (7)
  • gpo.gov/A
  • gpo.gov/MX
  • gpo.gov/NS
  • gpo.gov/NSEC3PARAM
  • gpo.gov/NSEC3PARAM
  • gpo.gov/SOA
  • gpo.gov/TXT

DNSKEY/DS/NSEC statusDNSKEY/DS/NSEC status

Secure (9)
  • ./DNSKEY (alg 8, id 20326)
  • ./DNSKEY (alg 8, id 26838)
  • gov/DNSKEY (alg 8, id 57735)
  • gov/DNSKEY (alg 8, id 7698)
  • gov/DS (alg 8, id 7698)
  • gpo.gov/DNSKEY (alg 8, id 43110)
  • gpo.gov/DNSKEY (alg 8, id 43666)
  • gpo.gov/DS (alg 8, id 43666)
  • gpo.gov/DS (alg 8, id 43666)

Delegation statusDelegation status

Secure (2)
  • . to gov
  • gov to gpo.gov

NoticesNotices

Errors (5)
  • gpo.gov/DNSKEY: The response (449 bytes) was malformed. (162.140.64.100, 162.140.252.180, UDP_-_EDNS0_512_D_KN)
  • gpo.gov/DNSKEY has errors; select the "Denial of existence" DNSSEC option to see them.
  • gpo.gov/CNAME has errors; select the "Denial of existence" DNSSEC option to see them.
  • ygr2mpf3dq.gpo.gov/A has errors; select the "Denial of existence" DNSSEC option to see them.
  • gpo.gov/AAAA has errors; select the "Denial of existence" DNSSEC option to see them.
Warnings (9)
  • RRSIG gpo.gov/NSEC3PARAM alg 8, id 43110: The value of the Signature Inception field of the RRSIG RR (2021-09-02 13:40:17+00:00) is within possible clock skew range (1 second) of the current time (2021-09-02 13:40:18+00:00). See RFC 4035, Sec. 5.3.1.
  • RRSIG gpo.gov/NSEC3PARAM alg 8, id 43110: The value of the Signature Inception field of the RRSIG RR (2021-09-02 13:40:17+00:00) is within possible clock skew range (1 second) of the current time (2021-09-02 13:40:18+00:00). See RFC 4035, Sec. 5.3.1.
  • gpo.gov/DS (alg 8, id 43666): DNSSEC implementers are prohibited from implementing signing with DS algorithm 1 (SHA-1). See RFC 8624, Sec. 3.2.
  • gpo.gov/DS (alg 8, id 43666): DNSSEC implementers are prohibited from implementing signing with DS algorithm 1 (SHA-1). See RFC 8624, Sec. 3.2.
  • gpo.gov/DS (alg 8, id 43666): 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.
  • gpo.gov/DS (alg 8, id 43666): 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.
  • gpo.gov/CNAME has warnings; select the "Denial of existence" DNSSEC option to see them.
  • ygr2mpf3dq.gpo.gov/A has warnings; select the "Denial of existence" DNSSEC option to see them.
  • gpo.gov/AAAA 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
Download: png | svg
Warning JavaScript is required to make the graph below interactive.
DNSSEC authentication graph