harvard.edu | DNSViz

harvard.edu

Updated: 2023-04-08 13:03:35 UTC (595 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 (6)

harvard.edu/A
harvard.edu/AAAA
harvard.edu/MX
harvard.edu/NS
harvard.edu/SOA
harvard.edu/TXT

Secure (2)

edu/SOA
edu/SOA

DNSKEY/DS/NSEC status

Secure (7)

./DNSKEY (alg 8, id 20326)
./DNSKEY (alg 8, id 60955)
./DNSKEY (alg 8, id 951)
NSEC3 proving non-existence of harvard.edu/DS
edu/DNSKEY (alg 8, id 28065)
edu/DNSKEY (alg 8, id 34085)
edu/DS (alg 8, id 28065)

Delegation status

Insecure (1)

edu to harvard.edu

Secure (1)

. to edu

Notices

Errors (2)

harvard.edu/A: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (128.103.200.35, 128.103.200.162, UDP_-_NOEDNS_)
zbg9nlcy1t.harvard.edu/A has errors; select the "Denial of existence" DNSSEC option to see them.

Warnings (2)

edu to harvard.edu: Authoritative AAAA records exist for ext-dns-1.harvard.edu, but there are no corresponding AAAA glue records. See RFC 1034, Sec. 4.2.2.
edu to harvard.edu: Authoritative AAAA records exist for ext-dns-2.harvard.edu, but there are no corresponding AAAA glue records. 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