pfizer.com | DNSViz

pfizer.com

Updated: 2024-03-01 15:38:19 UTC (46 days ago) Update now

DNSSEC options (hide)

|?| RR types:
|?| DNSSEC algorithms:
|?| DS digest algorithms:
|?| Denial of existence:
|?| Redundant edges:
|?| Trust anchors:
- Root zone KSK
|?| Additional trusted keys:

Notices

DNSSEC Authentication Chain

RRset status

Insecure (5)

pfizer.com/A
pfizer.com/MX
pfizer.com/NS
pfizer.com/SOA
pfizer.com/TXT

Secure (2)

com/SOA
com/SOA

DNSKEY/DS/NSEC status

Secure (6)

./DNSKEY (alg 8, id 20326)
./DNSKEY (alg 8, id 30903)
NSEC3 proving non-existence of pfizer.com/DS
com/DNSKEY (alg 13, id 19718)
com/DNSKEY (alg 13, id 4534)
com/DS (alg 13, id 19718)

Delegation status

Insecure (1)

com to pfizer.com

Secure (1)

. to com

Notices

Errors (1)

pfizer.com/DNSKEY: The response had an invalid RCODE (SERVFAIL). (108.59.166.201, 108.59.168.201, 108.59.170.201, 108.59.172.201, 2600:2000:2100::c9, 2600:2000:2110::c9, 2600:2000:2120::c9, 2600:2000:2130::c9, UDP_-_EDNS0_512_D_KN, UDP_-_NOEDNS_)

Warnings (1)

pfizer.com/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. (108.59.166.201, 108.59.168.201, 108.59.170.201, 2600:2000:2100::c9, 2600:2000:2110::c9, 2600:2000:2120::c9, 2600:2000:2130::c9, UDP_-_EDNS0_4096_D_KN)

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