pfizer.com
Updated:
2022-11-07 16:56:57 UTC (745 days ago)
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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 18733)
- ./DNSKEY (alg 8, id 20326)
- NSEC3 proving non-existence of pfizer.com/DS
- com/DNSKEY (alg 8, id 30909)
- com/DNSKEY (alg 8, id 53929)
- com/DS (alg 8, id 30909)
Delegation status
Insecure (1)
- com to pfizer.com
Secure (1)
- . to com
Notices
Errors (2)
- pfizer.com/DNSKEY: The response had an invalid RCODE (SERVFAIL). See RFC 1035, Sec. 4.1.1. (108.59.161.15, 108.59.162.15, 108.59.163.15, 108.59.164.15, 2600:2000:2210::15, 2600:2000:2220::15, 2600:2000:2230::15, 2600:2000:2240::15, UDP_-_EDNS0_512_D_KN, UDP_-_NOEDNS_)
- pfizer.com/DNSKEY has errors; select the "Denial of existence" DNSSEC option to see them.
Warnings (3)
- com/DS (alg 8, id 30909): No response was received from the server over UDP (tried 7 times) until the NSID EDNS option was removed (however, this server appeared to respond legitimately to other queries with the NSID EDNS option present). See RFC 6891, Sec. 6.1.2. (193.0.14.129, UDP_-_EDNS0_4096_D_KN)
- com/DS (alg 8, id 30909): No response was received from the server over UDP (tried 7 times) until the NSID EDNS option was removed (however, this server appeared to respond legitimately to other queries with the NSID EDNS option present). See RFC 6891, Sec. 6.1.2. (193.0.14.129, UDP_-_EDNS0_4096_D_KN)
- 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. See RFC 6891, Sec. 6.2.6. (2600:2000:2210::15, 2600:2000:2220::15, 2600:2000:2230::15, 2600:2000:2240::15, UDP_-_EDNS0_4096_D_KN)
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