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DNSViz: A DNS visualization tool

ulisboa.pt

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

RRset statusRRset status

Secure (5)
  • ulisboa.pt/A
  • ulisboa.pt/MX
  • ulisboa.pt/NS
  • ulisboa.pt/SOA
  • ulisboa.pt/TXT

DNSKEY/DS/NSEC statusDNSKEY/DS/NSEC status

Secure (10)
  • ./DNSKEY (alg 8, id 20326)
  • ./DNSKEY (alg 8, id 46594)
  • ./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)
  • ulisboa.pt/DNSKEY (alg 5, id 4368)
  • ulisboa.pt/DNSKEY (alg 5, id 502)
  • ulisboa.pt/DS (alg 5, id 502)

Delegation statusDelegation status

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

NoticesNotices

Warnings (26)
  • 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 ulisboa.pt/A alg 5, id 4368: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 5 (RSASHA1). See RFC 8624, Sec. 3.1.
  • RRSIG ulisboa.pt/DNSKEY alg 5, id 4368: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 5 (RSASHA1). See RFC 8624, Sec. 3.1.
  • RRSIG ulisboa.pt/DNSKEY alg 5, id 4368: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 5 (RSASHA1). See RFC 8624, Sec. 3.1.
  • RRSIG ulisboa.pt/DNSKEY alg 5, id 502: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 5 (RSASHA1). See RFC 8624, Sec. 3.1.
  • RRSIG ulisboa.pt/DNSKEY alg 5, id 502: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 5 (RSASHA1). See RFC 8624, Sec. 3.1.
  • RRSIG ulisboa.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 ulisboa.pt/MX alg 5, id 4368: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 5 (RSASHA1). See RFC 8624, Sec. 3.1.
  • RRSIG ulisboa.pt/NS alg 5, id 4368: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 5 (RSASHA1). See RFC 8624, Sec. 3.1.
  • RRSIG ulisboa.pt/SOA alg 5, id 4368: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 5 (RSASHA1). See RFC 8624, Sec. 3.1.
  • RRSIG ulisboa.pt/TXT alg 5, id 4368: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 5 (RSASHA1). See RFC 8624, Sec. 3.1.
  • pt to ulisboa.pt: The following NS name(s) were found in the authoritative NS RRset, but not in the delegation NS RRset (i.e., in the pt zone): c.ul.pt See RFC 1034, Sec. 4.2.2.
  • 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): 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.
  • ulisboa.pt/DNSKEY (alg 5, id 4368): 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. (2001:690:2100:1::2, UDP_-_EDNS0_4096_D_K)
  • ulisboa.pt/DNSKEY (alg 5, id 502): 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. (2001:690:2100:1::2, UDP_-_EDNS0_4096_D_K)
  • ulisboa.pt/MX: 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. (2001:690:2100:1::2, UDP_-_EDNS0_4096_D_K)
  • ulisboa.pt/TXT: 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. (2001:690:2100:1::2, UDP_-_EDNS0_4096_D_K)
  • ulisboa.pt/DNSKEY has warnings; select the "Denial of existence" DNSSEC option to see them.
  • ulisboa.pt/AAAA has warnings; select the "Denial of existence" DNSSEC option to see them.
  • ulisboa.pt/DS has warnings; select the "Denial of existence" DNSSEC option to see them.
  • onfltrwsh6.ulisboa.pt/A has warnings; select the "Denial of existence" DNSSEC option to see them.
  • ulisboa.pt/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