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DNSViz: A DNS visualization tool

ihs.gov

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

RRset statusRRset status

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

DNSKEY/DS/NSEC statusDNSKEY/DS/NSEC status

Secure (12)
  • ./DNSKEY (alg 8, id 20326)
  • ./DNSKEY (alg 8, id 60955)
  • ./DNSKEY (alg 8, id 951)
  • gov/DNSKEY (alg 8, id 24250)
  • gov/DNSKEY (alg 8, id 7698)
  • gov/DS (alg 8, id 7698)
  • ihs.gov/DNSKEY (alg 8, id 18741)
  • ihs.gov/DNSKEY (alg 8, id 32690)
  • ihs.gov/DNSKEY (alg 8, id 55010)
  • ihs.gov/DNSKEY (alg 8, id 6750)
  • ihs.gov/DS (alg 8, id 32690)
  • ihs.gov/DS (alg 8, id 55010)

Delegation statusDelegation status

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

NoticesNotices

Errors (5)
  • ihs.gov zone: The server(s) were not responsive to queries over UDP. See RFC 1035, Sec. 4.2. (2607:f220:0:1::2a, 2607:f220:0:1::2b, 2607:f220:0:1::2c, 2607:f220:0:1::2d)
  • ihs.gov/A: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (2607:f220:0:1::2a, 2607:f220:0:1::2b, 2607:f220:0:1::2c, 2607:f220:0:1::2d, UDP_-_NOEDNS_)
  • ihs.gov/MX: No response was received from the server over UDP (tried 4 times). See RFC 1035, Sec. 4.2. (158.74.30.98, 158.74.30.102, 158.74.30.103, UDP_-_EDNS0_512_D_KN)
  • ihs.gov/NS: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (2607:f220:0:1::2a, 2607:f220:0:1::2b, 2607:f220:0:1::2c, 2607:f220:0:1::2d, UDP_-_NOEDNS_)
  • s1o5z0txid.ihs.gov/A has errors; select the "Denial of existence" DNSSEC option to see them.
Warnings (6)
  • ihs.gov/SOA: 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. (158.74.30.103, UDP_-_EDNS0_4096_D_KN)
  • ihs.gov/SOA: No response was received from the server over UDP (tried 7 times) until the NSID EDNS option was removed (however, this server appeared to respond legitimately to other queries with the NSID EDNS option present). See RFC 6891, Sec. 6.1.2. (158.74.30.102, UDP_-_EDNS0_4096_D_KN_0x20)
  • ihs.gov/SOA: 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. (158.74.30.98, UDP_-_EDNS0_4096_D_KN, UDP_-_EDNS0_4096_D_KN_0x20)
  • ihs.gov/TXT: No response was received from the server over UDP (tried 7 times) until the NSID EDNS option was removed (however, this server appeared to respond legitimately to other queries with the NSID EDNS option present). See RFC 6891, Sec. 6.1.2. (158.74.30.102, UDP_-_EDNS0_4096_D_KN)
  • ihs.gov/CNAME has warnings; select the "Denial of existence" DNSSEC option to see them.
  • ihs.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
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DNSSEC authentication graph