osu.edu | DNSViz

osu.edu

Updated: 2023-10-04 13:44:18 UTC (414 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)

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

Secure (2)

edu/SOA
edu/SOA

DNSKEY/DS/NSEC status

Secure (7)

./DNSKEY (alg 8, id 11019)
./DNSKEY (alg 8, id 20326)
./DNSKEY (alg 8, id 46780)
NSEC3 proving non-existence of osu.edu/DS
edu/DNSKEY (alg 13, id 35663)
edu/DNSKEY (alg 13, id 8957)
edu/DS (alg 13, id 35663)

Delegation status

Insecure (1)

edu to osu.edu

Secure (1)

. to edu

Notices

Errors (2)

osu.edu zone: The server(s) were not responsive to queries over TCP. See RFC 1035, Sec. 4.2. (199.18.199.2)
osu.edu/SOA: The TCP connection was interrupted (ECONNRESET). See RFC 1035, Sec. 4.2. (199.18.199.2, TCP_-_EDNS0_4096_D_N)

Warnings (1)

osu.edu/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. (2610:a8:2004::2, 2610:a8:2006::2, UDP_-_EDNS0_4096_D_KN)

DNSKEY legend

Full legend

	SEP bit set
	Revoke bit set
	Trust anchor

See also

DNSSEC Debugger by Verisign Labs.

Download: png | svg

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DNSSEC authentication graph