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DNSViz: A DNS visualization tool

fdsys.gov

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

RRset statusRRset status

Secure (4)
  • fdsys.gov/A
  • fdsys.gov/NS
  • fdsys.gov/SOA
  • fdsys.gov/TXT

DNSKEY/DS/NSEC statusDNSKEY/DS/NSEC status

Secure (11)
  • ./DNSKEY (alg 8, id 20326)
  • ./DNSKEY (alg 8, id 46594)
  • fdsys.gov/DNSKEY (alg 8, id 14131)
  • fdsys.gov/DNSKEY (alg 8, id 51879)
  • fdsys.gov/DS (alg 8, id 14131)
  • fdsys.gov/DS (alg 8, id 14131)
  • gov/DNSKEY (alg 8, id 26665)
  • 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

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

NoticesNotices

Errors (6)
  • fdsys.gov/DNSKEY: The response (451 bytes) was malformed. (162.140.64.100, 162.140.252.180, UDP_-_EDNS0_512_D_K)
  • fdsys.gov/AAAA has errors; select the "Denial of existence" DNSSEC option to see them.
  • fdsys.gov/MX has errors; select the "Denial of existence" DNSSEC option to see them.
  • fq8v62yow0.fdsys.gov/A has errors; select the "Denial of existence" DNSSEC option to see them.
  • fdsys.gov/DNSKEY has errors; select the "Denial of existence" DNSSEC option to see them.
  • fdsys.gov/CNAME has errors; select the "Denial of existence" DNSSEC option to see them.
Warnings (14)
  • RRSIG fdsys.gov/SOA alg 8, id 51879: The value of the Signature Inception field of the RRSIG RR (2020-07-16 14:17:52+00:00) is within possible clock skew range (0 seconds) of the current time (2020-07-16 14:17:52+00:00). See RFC 4035, Sec. 5.3.1.
  • RRSIG fdsys.gov/SOA alg 8, id 51879: The value of the Signature Inception field of the RRSIG RR (2020-07-16 14:17:52+00:00) is within possible clock skew range (0 seconds) of the current time (2020-07-16 14:17:52+00:00). See RFC 4035, Sec. 5.3.1.
  • fdsys.gov/DS (alg 8, id 14131): DNSSEC implementers are prohibited from implementing signing with DS algorithm 1 (SHA-1). See RFC 8624, Sec. 3.2.
  • fdsys.gov/DS (alg 8, id 14131): DNSSEC implementers are prohibited from implementing signing with DS algorithm 1 (SHA-1). See RFC 8624, Sec. 3.2.
  • fdsys.gov/DS (alg 8, id 14131): 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.
  • fdsys.gov/DS (alg 8, id 14131): 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): 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.
  • fdsys.gov/AAAA has warnings; select the "Denial of existence" DNSSEC option to see them.
  • fdsys.gov/MX has warnings; select the "Denial of existence" DNSSEC option to see them.
  • fq8v62yow0.fdsys.gov/A has warnings; select the "Denial of existence" DNSSEC option to see them.
  • fdsys.gov/CNAME 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