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DNSViz: A DNS visualization tool

pfizer.com

DNSSEC options (hide)
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Notices
DNSSEC Authentication Chain

RRset statusRRset 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 statusDNSKEY/DS/NSEC status

Secure (8)
  • ./DNSKEY (alg 8, id 18733)
  • ./DNSKEY (alg 8, id 20326)
  • ./DNSKEY (alg 8, id 20826)
  • NSEC3 proving non-existence of pfizer.com/DS
  • com/DNSKEY (alg 8, id 30909)
  • com/DNSKEY (alg 8, id 32298)
  • com/DNSKEY (alg 8, id 53929)
  • com/DS (alg 8, id 30909)

Delegation statusDelegation status

Insecure (1)
  • com to pfizer.com
Secure (1)
  • . to com

NoticesNotices

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 (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. 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)

DNSKEY legend

Full legend
SEP bit setSEP bit set
Revoke bit setRevoke bit set
Trust anchorTrust anchor
Download: png | svg
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DNSSEC authentication graph