View on GitHub

DNSViz: A DNS visualization tool

ttbonline.gov

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

RRset statusRRset status

Secure (7)
  • ttbonline.gov/A
  • ttbonline.gov/AAAA
  • ttbonline.gov/NS
  • ttbonline.gov/NSEC3PARAM
  • ttbonline.gov/NSEC3PARAM
  • ttbonline.gov/SOA
  • ttbonline.gov/TXT

DNSKEY/DS/NSEC statusDNSKEY/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)
  • ttbonline.gov/DNSKEY (alg 8, id 22878)
  • ttbonline.gov/DNSKEY (alg 8, id 55915)
  • ttbonline.gov/DS (alg 8, id 55915)
  • ttbonline.gov/DS (alg 8, id 55915)

Delegation statusDelegation status

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

NoticesNotices

Errors (11)
  • RRSIG ttbonline.gov/DNSKEY alg 8, id 22878: The TTL of the RRset (3600) exceeds the value of the Original TTL field of the RRSIG RR covering it (300). See RFC 4035, Sec. 2.2.
  • RRSIG ttbonline.gov/DNSKEY alg 8, id 22878: The TTL of the RRset (3600) exceeds the value of the Original TTL field of the RRSIG RR covering it (300). See RFC 4035, Sec. 2.2.
  • RRSIG ttbonline.gov/DNSKEY alg 8, id 55915: The TTL of the RRset (3600) exceeds the value of the Original TTL field of the RRSIG RR covering it (300). See RFC 4035, Sec. 2.2.
  • RRSIG ttbonline.gov/DNSKEY alg 8, id 55915: The TTL of the RRset (3600) exceeds the value of the Original TTL field of the RRSIG RR covering it (300). See RFC 4035, Sec. 2.2.
  • ttbonline.gov/NSEC3PARAM: DNSSEC was effectively downgraded because the response had an invalid RCODE (SERVFAIL) with EDNS enabled. See RFC 6891, Sec. 7, RFC 2671, Sec. 5.3. (172.64.52.110, UDP_-_NOEDNS_)
  • ttbonline.gov/NSEC3PARAM: The DNSSEC records necessary to validate the response could not be retrieved from the server. See RFC 4035, Sec. 3.1.1, RFC 4035, Sec. 3.1.3. (172.64.52.110, UDP_-_EDNS0_4096_D_KN)
  • ttbonline.gov/NSEC3PARAM: The response had an invalid RCODE (SERVFAIL) until EDNS was disabled (however, this server appeared to respond legitimately to other queries with EDNS enabled). See RFC 6891, Sec. 6.2.6. (172.64.52.110, UDP_-_EDNS0_4096_D_KN)
  • ttbonline.gov/DNSKEY has errors; select the "Denial of existence" DNSSEC option to see them.
  • ttbonline.gov/MX has errors; select the "Denial of existence" DNSSEC option to see them.
  • b7tldsxh80.ttbonline.gov/A has errors; select the "Denial of existence" DNSSEC option to see them.
  • ttbonline.gov/CNAME has errors; select the "Denial of existence" DNSSEC option to see them.
Warnings (9)
  • ttbonline.gov/DNSKEY: The Authoritative Answer (AA) flag was not set in the response. See RFC 1035, Sec. 4.1.1. (172.64.52.110, 172.64.53.149, 2606:4700:52::ac40:346e, 2606:4700:5a::ac40:3595, UDP_-_EDNS0_512_D_KN)
  • ttbonline.gov/DS (alg 8, id 55915): DNSSEC implementers are prohibited from implementing signing with DS algorithm 1 (SHA-1). See RFC 8624, Sec. 3.2.
  • ttbonline.gov/DS (alg 8, id 55915): DNSSEC implementers are prohibited from implementing signing with DS algorithm 1 (SHA-1). See RFC 8624, Sec. 3.2.
  • ttbonline.gov/DS (alg 8, id 55915): 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.
  • ttbonline.gov/DS (alg 8, id 55915): 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.
  • ttbonline.gov/DNSKEY has warnings; select the "Denial of existence" DNSSEC option to see them.
  • ttbonline.gov/MX has warnings; select the "Denial of existence" DNSSEC option to see them.
  • b7tldsxh80.ttbonline.gov/A has warnings; select the "Denial of existence" DNSSEC option to see them.
  • ttbonline.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
Download: png | svg
Warning JavaScript is required to make the graph below interactive.
DNSSEC authentication graph