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DNSViz: A DNS visualization tool

att.com

DNSSEC options (hide)
  1. |?|
  2. |?|
  3. |?|
  4. |?|
  5. |?|
  6. |?|
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Notices
DNSSEC Authentication Chain

RRset statusRRset status

Insecure (5)
  • att.com/A
  • att.com/MX
  • att.com/NS
  • att.com/SOA
  • att.com/TXT
Secure (1)
  • com/SOA

DNSKEY/DS/NSEC statusDNSKEY/DS/NSEC status

Secure (7)
  • ./DNSKEY (alg 8, id 20038)
  • ./DNSKEY (alg 8, id 20326)
  • NSEC3 proving non-existence of att.com/DS
  • com/DNSKEY (alg 13, id 19718)
  • com/DNSKEY (alg 13, id 59354)
  • com/DNSKEY (alg 13, id 956)
  • com/DS (alg 13, id 19718)

Delegation statusDelegation status

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

NoticesNotices

Warnings (1)
  • att.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. (95.100.174.64, 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