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DNSViz: A DNS visualization tool

uminho.pt

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

RRset statusRRset status

Secure (4)
  • uminho.pt/MX
  • uminho.pt/NS
  • uminho.pt/SOA
  • uminho.pt/TXT

DNSKEY/DS/NSEC statusDNSKEY/DS/NSEC status

Secure (10)
  • ./DNSKEY (alg 8, id 20326)
  • ./DNSKEY (alg 8, id 48903)
  • pt/DNSKEY (alg 7, id 21299)
  • pt/DNSKEY (alg 7, id 40995)
  • pt/DS (alg 7, id 40995)
  • pt/DS (alg 7, id 40995)
  • uminho.pt/DNSKEY (alg 5, id 36028)
  • uminho.pt/DNSKEY (alg 5, id 51330)
  • uminho.pt/DS (alg 5, id 36028)
  • uminho.pt/DS (alg 5, id 36028)

Delegation statusDelegation status

Secure (2)
  • . to pt
  • pt to uminho.pt

NoticesNotices

Errors (1)
  • uminho.pt/NS: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (2001:690:2280:801::145, UDP_-_NOEDNS_)
Warnings (28)
  • ./DNSKEY (alg 8, id 20326): 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. (192.112.36.4, UDP_-_EDNS0_4096_D_K)
  • ./DNSKEY (alg 8, id 48903): 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. (192.112.36.4, UDP_-_EDNS0_4096_D_K)
  • RRSIG pt/DNSKEY alg 7, id 40995: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 7 (RSASHA1NSEC3SHA1). See RFC 8624, Sec. 3.1.
  • RRSIG pt/DNSKEY alg 7, id 40995: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 7 (RSASHA1NSEC3SHA1). See RFC 8624, Sec. 3.1.
  • RRSIG uminho.pt/DNSKEY alg 5, id 36028: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 5 (RSASHA1). See RFC 8624, Sec. 3.1.
  • RRSIG uminho.pt/DNSKEY alg 5, id 36028: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 5 (RSASHA1). See RFC 8624, Sec. 3.1.
  • RRSIG uminho.pt/DNSKEY alg 5, id 51330: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 5 (RSASHA1). See RFC 8624, Sec. 3.1.
  • RRSIG uminho.pt/DNSKEY alg 5, id 51330: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 5 (RSASHA1). See RFC 8624, Sec. 3.1.
  • RRSIG uminho.pt/DS alg 7, id 21299: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 7 (RSASHA1NSEC3SHA1). See RFC 8624, Sec. 3.1.
  • RRSIG uminho.pt/DS alg 7, id 21299: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 7 (RSASHA1NSEC3SHA1). See RFC 8624, Sec. 3.1.
  • RRSIG uminho.pt/MX alg 5, id 51330: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 5 (RSASHA1). See RFC 8624, Sec. 3.1.
  • RRSIG uminho.pt/NS alg 5, id 51330: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 5 (RSASHA1). See RFC 8624, Sec. 3.1.
  • RRSIG uminho.pt/SOA alg 5, id 51330: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 5 (RSASHA1). See RFC 8624, Sec. 3.1.
  • RRSIG uminho.pt/TXT alg 5, id 51330: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 5 (RSASHA1). See RFC 8624, Sec. 3.1.
  • pt/DS (alg 7, id 40995): DNSSEC implementers are prohibited from implementing signing with DS algorithm 1 (SHA-1). See RFC 8624, Sec. 3.2.
  • pt/DS (alg 7, id 40995): DNSSEC implementers are prohibited from implementing signing with DS algorithm 1 (SHA-1). See RFC 8624, Sec. 3.2.
  • pt/DS (alg 7, id 40995): 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.
  • pt/DS (alg 7, id 40995): 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.
  • uminho.pt/DS (alg 5, id 36028): DNSSEC implementers are prohibited from implementing signing with DS algorithm 1 (SHA-1). See RFC 8624, Sec. 3.2.
  • uminho.pt/DS (alg 5, id 36028): DNSSEC implementers are prohibited from implementing signing with DS algorithm 1 (SHA-1). See RFC 8624, Sec. 3.2.
  • uminho.pt/DS (alg 5, id 36028): 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.
  • uminho.pt/DS (alg 5, id 36028): 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.
  • uminho.pt/A has warnings; select the "Denial of existence" DNSSEC option to see them.
  • uminho.pt/DS has warnings; select the "Denial of existence" DNSSEC option to see them.
  • uminho.pt/AAAA has warnings; select the "Denial of existence" DNSSEC option to see them.
  • uminho.pt/CNAME has warnings; select the "Denial of existence" DNSSEC option to see them.
  • uminho.pt/DNSKEY has warnings; select the "Denial of existence" DNSSEC option to see them.
  • re2ixb0ac3.uminho.pt/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