facebook.com | DNSViz

facebook.com

Updated: 2021-06-02 03:16:03 UTC (1277 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 (7)

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

Secure (2)

com/SOA
com/SOA

DNSKEY/DS/NSEC status

Secure (6)

./DNSKEY (alg 8, id 14631)
./DNSKEY (alg 8, id 20326)
NSEC3 proving non-existence of facebook.com/DS
com/DNSKEY (alg 8, id 30909)
com/DNSKEY (alg 8, id 54714)
com/DS (alg 8, id 30909)

Delegation status

Insecure (1)

com to facebook.com

Secure (1)

. to com

Notices

Warnings (1)

facebook.com/NS: No response was received from the server over UDP (tried 6 times) until the COOKIE EDNS option was removed (however, this server appeared to respond legitimately to other queries with the COOKIE EDNS option present). See RFC 6891, Sec. 6.1.2. (2a03:2880:f0fc:c:face:b00c:0:35, 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