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DNSViz: A DNS visualization tool

tva.gov

DNSSEC options (hide)
  1. |?|
  2. |?|
  3. |?|
  4. |?|
  5. |?|
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Notices
DNSSEC Authentication Chain

RRset statusRRset status

Secure (5)
  • tva.gov/A
  • tva.gov/MX
  • tva.gov/NS
  • tva.gov/SOA
  • tva.gov/TXT

DNSKEY/DS/NSEC statusDNSKEY/DS/NSEC status

Secure (9)
  • ./DNSKEY (alg 8, id 14631)
  • ./DNSKEY (alg 8, id 20326)
  • gov/DNSKEY (alg 8, id 48498)
  • gov/DNSKEY (alg 8, id 7698)
  • gov/DS (alg 8, id 7698)
  • tva.gov/DNSKEY (alg 8, id 1415)
  • tva.gov/DNSKEY (alg 8, id 44529)
  • tva.gov/DNSKEY (alg 8, id 59020)
  • tva.gov/DS (alg 8, id 1415)

Delegation statusDelegation status

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

NoticesNotices

Errors (4)
  • tva.gov/NS: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (2600:1401:2::2f, UDP_-_NOEDNS_)
  • tva.gov/AAAA has errors; select the "Denial of existence" DNSSEC option to see them.
  • tva.gov/CNAME has errors; select the "Denial of existence" DNSSEC option to see them.
  • vp4kaqctyi.tva.gov/A has errors; select the "Denial of existence" DNSSEC option to see them.
Warnings (6)
  • gov/DS (alg 8, id 7698): The server appears to support DNS cookies but did not return a COOKIE option. See RFC 7873, Sec. 5.2.3. (192.5.5.241, 2001:500:2f::f, UDP_-_EDNS0_4096_D_KN)
  • gov/DS (alg 8, id 7698): The server appears to support DNS cookies but did not return a COOKIE option. See RFC 7873, Sec. 5.2.3. (192.5.5.241, 2001:500:2f::f, UDP_-_EDNS0_4096_D_KN)
  • tva.gov/A: No response was received from the server over UDP (tried 6 times) until the COOKIE EDNS option was removed (however, this server appeared to respond legitimately to other queries with the COOKIE EDNS option present). See RFC 6891, Sec. 6.1.2. (2600:1401:2::2f, UDP_-_EDNS0_4096_D_KN)
  • tva.gov/AAAA has warnings; select the "Denial of existence" DNSSEC option to see them.
  • tva.gov/CNAME has warnings; select the "Denial of existence" DNSSEC option to see them.
  • vp4kaqctyi.tva.gov/A 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