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DNSViz: A DNS visualization tool

irs.gov

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

RRset statusRRset status

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

DNSKEY/DS/NSEC statusDNSKEY/DS/NSEC status

Secure (10)
  • ./DNSKEY (alg 8, id 20326)
  • ./DNSKEY (alg 8, id 951)
  • gov/DNSKEY (alg 8, id 24250)
  • gov/DNSKEY (alg 8, id 7698)
  • gov/DS (alg 8, id 7698)
  • irs.gov/DNSKEY (alg 8, id 29359)
  • irs.gov/DNSKEY (alg 8, id 34821)
  • irs.gov/DNSKEY (alg 8, id 56781)
  • irs.gov/DNSKEY (alg 8, id 63805)
  • irs.gov/DS (alg 8, id 29359)

Delegation statusDelegation status

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

NoticesNotices

Errors (4)
  • irs.gov/DNSKEY: No response was received from the server over UDP (tried 4 times). See RFC 1035, Sec. 4.2. (152.216.13.164, UDP_-_EDNS0_512_D_KN)
  • irs.gov/DNSKEY has errors; select the "Denial of existence" DNSSEC option to see them.
  • irs.gov/CNAME has errors; select the "Denial of existence" DNSSEC option to see them.
  • t3v1aucb6i.irs.gov/A has errors; select the "Denial of existence" DNSSEC option to see them.
Warnings (3)
  • irs.gov/NS: 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. (152.216.13.164, UDP_-_EDNS0_4096_D_KN)
  • irs.gov/CNAME has warnings; select the "Denial of existence" DNSSEC option to see them.
  • t3v1aucb6i.irs.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
Download: png | svg
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DNSSEC authentication graph