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DNSViz: A DNS visualization tool

uscg.gov

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

RRset statusRRset status

Secure (3)
  • uscg.gov/NS
  • uscg.gov/SOA
  • uscg.gov/TXT

DNSKEY/DS/NSEC statusDNSKEY/DS/NSEC status

Secure (10)
  • ./DNSKEY (alg 8, id 20326)
  • ./DNSKEY (alg 8, id 42351)
  • gov/DNSKEY (alg 8, id 27306)
  • gov/DNSKEY (alg 8, id 7698)
  • gov/DS (alg 8, id 7698)
  • uscg.gov/DNSKEY (alg 7, id 28025)
  • uscg.gov/DNSKEY (alg 7, id 41789)
  • uscg.gov/DNSKEY (alg 7, id 8508)
  • uscg.gov/DS (alg 7, id 8508)
  • uscg.gov/DS (alg 7, id 8508)

Delegation statusDelegation status

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

NoticesNotices

Errors (13)
  • uscg.gov zone: The server(s) responded over TCP with a malformed response or with an invalid RCODE. See RFC 1035, Sec. 4.1.1. (152.121.33.3)
  • uscg.gov/DNSKEY: No response was received from the server over UDP (tried 4 times). See RFC 1035, Sec. 4.2. (152.121.2.19, 152.121.33.3, UDP_-_EDNS0_512_D_KN)
  • uscg.gov/NS: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (152.121.33.3, UDP_-_NOEDNS_)
  • uscg.gov/SOA: No response was received from the server over TCP (tried 3 times). See RFC 1035, Sec. 4.2. (152.121.33.3, TCP_-_EDNS0_4096_D_N)
  • uscg.gov/TXT: DNSSEC was effectively downgraded because no response was received from the server over UDP (tried 10 times) with the DO bit set. See RFC 4035, Sec. 3.2.1. (152.121.33.3, UDP_-_EDNS0_4096_)
  • uscg.gov/TXT: No response was received from the server over UDP (tried 10 times) until the DO EDNS flag was cleared (however, this server appeared to respond legitimately to other queries with the DO EDNS flag set). See RFC 6891, Sec. 6.1.4. (152.121.33.3, UDP_-_EDNS0_4096_D_KN)
  • uscg.gov/TXT: 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. (152.121.33.3, UDP_-_EDNS0_4096_D_KN)
  • z21uwqms9f.uscg.gov/A has errors; select the "Denial of existence" DNSSEC option to see them.
  • uscg.gov/MX has errors; select the "Denial of existence" DNSSEC option to see them.
  • uscg.gov/DNSKEY has errors; select the "Denial of existence" DNSSEC option to see them.
  • uscg.gov/CNAME has errors; select the "Denial of existence" DNSSEC option to see them.
  • uscg.gov/AAAA has errors; select the "Denial of existence" DNSSEC option to see them.
  • uscg.gov/A has errors; select the "Denial of existence" DNSSEC option to see them.
Warnings (27)
  • RRSIG uscg.gov/DNSKEY alg 7, id 28025: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 7 (RSASHA1NSEC3SHA1). See RFC 8624, Sec. 3.1.
  • RRSIG uscg.gov/DNSKEY alg 7, id 28025: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 7 (RSASHA1NSEC3SHA1). See RFC 8624, Sec. 3.1.
  • RRSIG uscg.gov/DNSKEY alg 7, id 28025: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 7 (RSASHA1NSEC3SHA1). See RFC 8624, Sec. 3.1.
  • RRSIG uscg.gov/DNSKEY alg 7, id 41789: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 7 (RSASHA1NSEC3SHA1). See RFC 8624, Sec. 3.1.
  • RRSIG uscg.gov/DNSKEY alg 7, id 41789: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 7 (RSASHA1NSEC3SHA1). See RFC 8624, Sec. 3.1.
  • RRSIG uscg.gov/DNSKEY alg 7, id 41789: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 7 (RSASHA1NSEC3SHA1). See RFC 8624, Sec. 3.1.
  • RRSIG uscg.gov/DNSKEY alg 7, id 41789: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 7 (RSASHA1NSEC3SHA1). See RFC 8624, Sec. 3.1.
  • RRSIG uscg.gov/DNSKEY alg 7, id 41789: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 7 (RSASHA1NSEC3SHA1). See RFC 8624, Sec. 3.1.
  • RRSIG uscg.gov/DNSKEY alg 7, id 8508: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 7 (RSASHA1NSEC3SHA1). See RFC 8624, Sec. 3.1.
  • RRSIG uscg.gov/DNSKEY alg 7, id 8508: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 7 (RSASHA1NSEC3SHA1). See RFC 8624, Sec. 3.1.
  • RRSIG uscg.gov/DNSKEY alg 7, id 8508: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 7 (RSASHA1NSEC3SHA1). See RFC 8624, Sec. 3.1.
  • RRSIG uscg.gov/DNSKEY alg 7, id 8508: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 7 (RSASHA1NSEC3SHA1). See RFC 8624, Sec. 3.1.
  • RRSIG uscg.gov/DNSKEY alg 7, id 8508: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 7 (RSASHA1NSEC3SHA1). See RFC 8624, Sec. 3.1.
  • RRSIG uscg.gov/NS alg 7, id 41789: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 7 (RSASHA1NSEC3SHA1). See RFC 8624, Sec. 3.1.
  • RRSIG uscg.gov/SOA alg 7, id 41789: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 7 (RSASHA1NSEC3SHA1). See RFC 8624, Sec. 3.1.
  • RRSIG uscg.gov/TXT alg 7, id 41789: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 7 (RSASHA1NSEC3SHA1). See RFC 8624, Sec. 3.1.
  • uscg.gov/DNSKEY (alg 7, id 28025): The DNSKEY RR was not found in the DNSKEY RRset returned by one or more servers. (152.121.2.19, 152.121.50.3, UDP_-_EDNS0_4096_D_KN)
  • uscg.gov/DS (alg 7, id 8508): DNSSEC implementers are prohibited from implementing signing with DS algorithm 1 (SHA-1). See RFC 8624, Sec. 3.2.
  • uscg.gov/DS (alg 7, id 8508): DNSSEC implementers are prohibited from implementing signing with DS algorithm 1 (SHA-1). See RFC 8624, Sec. 3.2.
  • uscg.gov/DS (alg 7, id 8508): 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.
  • uscg.gov/DS (alg 7, id 8508): 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.
  • z21uwqms9f.uscg.gov/A has warnings; select the "Denial of existence" DNSSEC option to see them.
  • uscg.gov/MX has warnings; select the "Denial of existence" DNSSEC option to see them.
  • uscg.gov/DNSKEY has warnings; select the "Denial of existence" DNSSEC option to see them.
  • uscg.gov/CNAME has warnings; select the "Denial of existence" DNSSEC option to see them.
  • uscg.gov/AAAA has warnings; select the "Denial of existence" DNSSEC option to see them.
  • uscg.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