View on GitHub

DNSViz: A DNS visualization tool

sigmaaldrich.com

DNSSEC options (hide)
  1. |?|
  2. |?|
  3. |?|
  4. |?|
  5. |?|
  6. |?|
  7. |?|
  8. |?|
  9. |?|
  10. |?|
Notices
DNSSEC Authentication Chain

RRset statusRRset status

Insecure (5)
  • sigmaaldrich.com/A
  • sigmaaldrich.com/MX
  • sigmaaldrich.com/NS
  • sigmaaldrich.com/SOA
  • sigmaaldrich.com/TXT
Secure (2)
  • com/SOA
  • com/SOA

DNSKEY/DS/NSEC statusDNSKEY/DS/NSEC status

Secure (6)
  • ./DNSKEY (alg 8, id 20326)
  • ./DNSKEY (alg 8, id 46594)
  • NSEC3 proving non-existence of sigmaaldrich.com/DS
  • com/DNSKEY (alg 8, id 24966)
  • com/DNSKEY (alg 8, id 30909)
  • com/DS (alg 8, id 30909)

Delegation statusDelegation status

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

NoticesNotices

Errors (13)
  • sigmaaldrich.com zone: The server(s) responded over UDP with a malformed response or with an invalid RCODE. See RFC 1035, Sec. 4.1.1. (2a04:2b00:14aa::12)
  • sigmaaldrich.com zone: The server(s) were not responsive to queries over TCP. See RFC 1035, Sec. 4.2. (2a04:2b00:14aa::12)
  • sigmaaldrich.com/A: The response had an invalid RCODE (SERVFAIL). See RFC 1035, Sec. 4.1.1. (2a04:2b00:14aa::12, UDP_-_NOEDNS_)
  • sigmaaldrich.com/DNSKEY: The response had an invalid RCODE (SERVFAIL). See RFC 1035, Sec. 4.1.1. (2a04:2b00:14aa::12, UDP_-_EDNS0_512_D_K, UDP_-_NOEDNS_)
  • sigmaaldrich.com/MX: The response had an invalid RCODE (SERVFAIL). See RFC 1035, Sec. 4.1.1. (2a04:2b00:14aa::12, UDP_-_EDNS0_512_D_K, UDP_-_NOEDNS_)
  • sigmaaldrich.com/NS: The response had an invalid RCODE (SERVFAIL). See RFC 1035, Sec. 4.1.1. (2a04:2b00:14aa::12, UDP_-_NOEDNS_)
  • sigmaaldrich.com/SOA: The response had an invalid RCODE (SERVFAIL). See RFC 1035, Sec. 4.1.1. (2a04:2b00:14aa::12, UDP_-_NOEDNS_, UDP_-_NOEDNS__0x20)
  • sigmaaldrich.com/SOA: There was an error communicating with the server over TCP (UNKNOWN). See RFC 1035, Sec. 4.2. (2a04:2b00:14aa::12, TCP_-_EDNS0_4096_D)
  • sigmaaldrich.com/TXT: The response had an invalid RCODE (SERVFAIL). See RFC 1035, Sec. 4.1.1. (2a04:2b00:14aa::12, UDP_-_NOEDNS_)
  • sigmaaldrich.com/AAAA has errors; select the "Denial of existence" DNSSEC option to see them.
  • sigmaaldrich.com/CNAME has errors; select the "Denial of existence" DNSSEC option to see them.
  • sigmaaldrich.com/DNSKEY has errors; select the "Denial of existence" DNSSEC option to see them.
  • x9wgopbyiv.sigmaaldrich.com/A has errors; select the "Denial of existence" DNSSEC option to see them.

DNSKEY legend

Full legend
SEP bit setSEP bit set
Revoke bit setRevoke bit set
Trust anchorTrust anchor
Download: png | svg
Warning JavaScript is required to make the graph below interactive.
DNSSEC authentication graph