cisco.com | DNSViz

cisco.com

Updated: 2025-07-17 13:55:41 UTC (215 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)

cisco.com/A
cisco.com/AAAA
cisco.com/MX
cisco.com/NS
cisco.com/SOA
cisco.com/TXT

Secure (1)

com/SOA

DNSKEY/DS/NSEC status

Secure (9)

./DNSKEY (alg 8, id 20326)
./DNSKEY (alg 8, id 38696)
./DNSKEY (alg 8, id 46441)
./DNSKEY (alg 8, id 53148)
NSEC3 proving non-existence of cisco.com/DS
com/DNSKEY (alg 13, id 19718)
com/DNSKEY (alg 13, id 20545)
com/DNSKEY (alg 13, id 40097)
com/DS (alg 13, id 19718)

Delegation status

Insecure (1)

com to cisco.com

Secure (1)

. to com

Notices

Errors (1)

com/DNSKEY: No response was received from the server over UDP (tried 2 times). See RFC 1035, Sec. 4.2. (192.5.6.30, 192.12.94.30, 192.26.92.30, 192.31.80.30, 2001:500:856e::30, 2001:502:1ca1::30, 2001:503:83eb::30, 2001:503:a83e::2:30, UDP_-_EDNS0_512_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