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DNSViz: A DNS visualization tool

sp.edu.sg

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

RRset statusRRset status

Secure (7)
  • sp.edu.sg/A
  • sp.edu.sg/AAAA
  • sp.edu.sg/MX
  • sp.edu.sg/NS
  • sp.edu.sg/NSEC3PARAM
  • sp.edu.sg/SOA
  • sp.edu.sg/TXT

DNSKEY/DS/NSEC statusDNSKEY/DS/NSEC status

Secure (14)
  • ./DNSKEY (alg 8, id 20326)
  • ./DNSKEY (alg 8, id 47671)
  • edu.sg/DNSKEY (alg 8, id 11550)
  • edu.sg/DNSKEY (alg 8, id 64432)
  • edu.sg/DS (alg 8, id 64432)
  • sg/DNSKEY (alg 8, id 12164)
  • sg/DNSKEY (alg 8, id 17460)
  • sg/DS (alg 8, id 12164)
  • sp.edu.sg/DNSKEY (alg 8, id 11794)
  • sp.edu.sg/DNSKEY (alg 8, id 62465)
  • sp.edu.sg/DNSKEY (alg 8, id 63000)
  • sp.edu.sg/DNSKEY (alg 8, id 65479)
  • sp.edu.sg/DS (alg 8, id 58969)
  • sp.edu.sg/DS (alg 8, id 62465)
Non_existent (1)
  • sp.edu.sg/DNSKEY (alg 8, id 58969)

Delegation statusDelegation status

Secure (3)
  • . to sg
  • edu.sg to sp.edu.sg
  • sg to edu.sg

NoticesNotices

Errors (19)
  • edu.sg to sp.edu.sg: No valid RRSIGs made by a key corresponding to a DS RR were found covering the DNSKEY RRset, resulting in no secure entry point (SEP) into the zone. See RFC 4035, Sec. 2.2, RFC 6840, Sec. 5.11. (164.78.252.50, UDP_-_EDNS0_4096_D_KN)
  • edu.sg to sp.edu.sg: The DS RRset for the zone included algorithm 8 (RSASHA256), but no DS RR matched a DNSKEY with algorithm 8 that signs the zone's DNSKEY RRset. See RFC 4035, Sec. 2.2, RFC 6840, Sec. 5.11. (164.78.252.50, UDP_-_EDNS0_4096_D_KN)
  • sp.edu.sg zone: The server(s) were not responsive to queries over UDP. See RFC 1035, Sec. 4.2. (2403:e900:ff1:e0fc::1:11)
  • sp.edu.sg/A: No RRSIG covering the RRset was returned in the response. See RFC 4035, Sec. 3.1.1. (164.78.252.50, UDP_-_EDNS0_4096_D_KN)
  • sp.edu.sg/A: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (2403:e900:ff1:e0fc::1:11, UDP_-_NOEDNS_)
  • sp.edu.sg/AAAA: No RRSIG covering the RRset was returned in the response. See RFC 4035, Sec. 3.1.1. (164.78.252.50, UDP_-_EDNS0_4096_D_KN)
  • sp.edu.sg/DNSKEY (alg 8, id 11794): No RRSIG covering the RRset was returned in the response. See RFC 4035, Sec. 3.1.1. (164.78.252.50, UDP_-_EDNS0_4096_D_KN)
  • sp.edu.sg/DNSKEY (alg 8, id 62465): No RRSIG covering the RRset was returned in the response. See RFC 4035, Sec. 3.1.1. (164.78.252.50, UDP_-_EDNS0_4096_D_KN)
  • sp.edu.sg/DNSKEY (alg 8, id 63000): No RRSIG covering the RRset was returned in the response. See RFC 4035, Sec. 3.1.1. (164.78.252.50, UDP_-_EDNS0_4096_D_KN)
  • sp.edu.sg/DNSKEY (alg 8, id 65479): No RRSIG covering the RRset was returned in the response. See RFC 4035, Sec. 3.1.1. (164.78.252.50, UDP_-_EDNS0_4096_D_KN)
  • sp.edu.sg/MX: No RRSIG covering the RRset was returned in the response. See RFC 4035, Sec. 3.1.1. (164.78.252.50, UDP_-_EDNS0_4096_D_KN)
  • sp.edu.sg/NS: No RRSIG covering the RRset was returned in the response. See RFC 4035, Sec. 3.1.1. (164.78.252.50, UDP_-_EDNS0_4096_D_KN)
  • sp.edu.sg/NS: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (2403:e900:ff1:e0fc::1:11, UDP_-_NOEDNS_)
  • sp.edu.sg/NSEC3PARAM: No RRSIG covering the RRset was returned in the response. See RFC 4035, Sec. 3.1.1. (164.78.252.50, UDP_-_EDNS0_4096_D_KN)
  • sp.edu.sg/SOA: No RRSIG covering the RRset was returned in the response. See RFC 4035, Sec. 3.1.1. (164.78.252.50, TCP_-_EDNS0_4096_D_KN, TCP_-_EDNS0_4096_D_N, UDP_-_EDNS0_4096_D_KN, UDP_-_EDNS0_4096_D_KN_0x20)
  • sp.edu.sg/TXT: No RRSIG covering the RRset was returned in the response. See RFC 4035, Sec. 3.1.1. (164.78.252.50, UDP_-_EDNS0_4096_D_KN)
  • sp.edu.sg/DNSKEY has errors; select the "Denial of existence" DNSSEC option to see them.
  • sp.edu.sg/CNAME has errors; select the "Denial of existence" DNSSEC option to see them.
  • bp39l4grxu.sp.edu.sg/A has errors; select the "Denial of existence" DNSSEC option to see them.
Warnings (2)
  • bp39l4grxu.sp.edu.sg/A has warnings; select the "Denial of existence" DNSSEC option to see them.
  • sp.edu.sg/CNAME 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