cornell.edu | DNSViz

cornell.edu

Updated: 2023-05-02 19:26:09 UTC (599 days ago) Go to most recent »

DNSSEC options (hide)

|?| RR types:
|?| DNSSEC algorithms:
|?| DS digest algorithms:
|?| Denial of existence:
|?| Redundant edges:
|?| Ignore RFC 8624:
|?| Ignore RFC 9276:
|?| Multi-signer:
|?| Trust anchors:
- Root zone KSK
|?| Additional trusted keys:

Notices

DNSSEC Authentication Chain

RRset status

Insecure (5)

cornell.edu/A
cornell.edu/MX
cornell.edu/NS
cornell.edu/SOA
cornell.edu/TXT

Secure (2)

edu/SOA
edu/SOA

DNSKEY/DS/NSEC status

Secure (6)

./DNSKEY (alg 8, id 20326)
./DNSKEY (alg 8, id 60955)
NSEC3 proving non-existence of cornell.edu/DS
edu/DNSKEY (alg 8, id 28065)
edu/DNSKEY (alg 8, id 30503)
edu/DS (alg 8, id 28065)

Delegation status

Insecure (1)

edu to cornell.edu

Secure (1)

. to edu

Notices

Errors (3)

cornell.edu zone: The server(s) were not responsive to queries over UDP. See RFC 1035, Sec. 4.2. (192.195.74.252)
cornell.edu/A: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (192.195.74.252, UDP_-_NOEDNS_)
cornell.edu/NS: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (192.195.74.252, UDP_-_NOEDNS_)

Warnings (1)

edu to cornell.edu: The glue address(es) for drdns.cit.cornell.edu (192.195.74.252) differed from its authoritative address(es) (52.152.185.125). See RFC 1034, Sec. 4.2.2.

DNSKEY legend

Full legend

	SEP bit set
	Revoke bit set
	Trust anchor

See also

DNSSEC Debugger by Verisign Labs.

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DNSSEC authentication graph