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DNSViz: A DNS visualization tool

hhs.gov

DNSSEC options (hide)
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Notices
DNSSEC Authentication Chain

RRset statusRRset status

Insecure (5)
  • hhs.gov/A
  • hhs.gov/MX
  • hhs.gov/NS
  • hhs.gov/SOA
  • hhs.gov/TXT
Secure (1)
  • gov/SOA

DNSKEY/DS/NSEC statusDNSKEY/DS/NSEC status

Secure (6)
  • ./DNSKEY (alg 8, id 20326)
  • ./DNSKEY (alg 8, id 61050)
  • NSEC proving non-existence of hhs.gov/DS
  • gov/DNSKEY (alg 13, id 2536)
  • gov/DNSKEY (alg 13, id 35496)
  • gov/DS (alg 13, id 2536)

Delegation statusDelegation status

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

NoticesNotices

Errors (1)
  • o7y4s.9gyow.hhs.gov/A has errors; select the "Denial of existence" DNSSEC option to see them.
Warnings (3)
  • gov/DS (alg 13, id 2536): No response was received until the UDP payload size was decreased, indicating that the server might be attempting to send a payload that exceeds the path maximum transmission unit (PMTU) size. See RFC 6891, Sec. 6.2.6. (192.33.4.12, UDP_-_EDNS0_4096_D_KN)
  • gov/DS (alg 13, id 2536): No response was received until the UDP payload size was decreased, indicating that the server might be attempting to send a payload that exceeds the path maximum transmission unit (PMTU) size. See RFC 6891, Sec. 6.2.6. (192.33.4.12, UDP_-_EDNS0_4096_D_KN)
  • hhs.gov/NS: No response was received until the UDP payload size was decreased, indicating that the server might be attempting to send a payload that exceeds the path maximum transmission unit (PMTU) size. See RFC 6891, Sec. 6.2.6. (158.74.30.99, UDP_-_EDNS0_4096_D_KN)

DNSKEY legend

Full legend
SEP bit setSEP bit set
Revoke bit setRevoke bit set
Trust anchorTrust anchor
Download: png | svg
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DNSSEC authentication graph