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DNSViz: A DNS visualization tool

letsencrypt.org

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

RRset statusRRset status

Insecure (8)
  • letsencrypt.org/A
  • letsencrypt.org/A
  • letsencrypt.org/AAAA
  • letsencrypt.org/AAAA
  • letsencrypt.org/MX
  • letsencrypt.org/NS
  • letsencrypt.org/SOA
  • letsencrypt.org/TXT
Secure (1)
  • org/SOA

DNSKEY/DS/NSEC statusDNSKEY/DS/NSEC status

Secure (8)
  • ./DNSKEY (alg 8, id 14748)
  • ./DNSKEY (alg 8, id 20326)
  • ./DNSKEY (alg 8, id 26838)
  • NSEC3 proving non-existence of letsencrypt.org/DS
  • org/DNSKEY (alg 8, id 26974)
  • org/DNSKEY (alg 8, id 39681)
  • org/DNSKEY (alg 8, id 6555)
  • org/DS (alg 8, id 26974)

Delegation statusDelegation status

Insecure (1)
  • org to letsencrypt.org
Secure (1)
  • . to org

NoticesNotices

Errors (4)
  • NSEC3 proving non-existence of letsencrypt.org/DS: An iterations count of 0 must be used in NSEC3 records to alleviate computational burdens. See RFC 9276, Sec. 3.1.
  • NSEC3 proving non-existence of letsencrypt.org/DS: An iterations count of 0 must be used in NSEC3 records to alleviate computational burdens. See RFC 9276, Sec. 3.1.
  • org zone: The server(s) were not responsive to queries over UDP. See RFC 1035, Sec. 4.2. (2001:500:c::1)
  • letsencrypt.org/DS has errors; select the "Denial of existence" DNSSEC option to see them.
Warnings (8)
  • ./DNSKEY (alg 8, id 14748): The server appears to support DNS cookies but did not return a COOKIE option. See RFC 7873, Sec. 5.2.3. (2001:7fd::1, UDP_-_EDNS0_4096_D_KN)
  • ./DNSKEY (alg 8, id 20326): The server appears to support DNS cookies but did not return a COOKIE option. See RFC 7873, Sec. 5.2.3. (2001:7fd::1, UDP_-_EDNS0_4096_D_KN)
  • ./DNSKEY (alg 8, id 26838): The server appears to support DNS cookies but did not return a COOKIE option. See RFC 7873, Sec. 5.2.3. (2001:7fd::1, UDP_-_EDNS0_4096_D_KN)
  • NSEC3 proving non-existence of letsencrypt.org/DS: The salt value for an NSEC3 record should be empty. See RFC 9276, Sec. 3.1.
  • NSEC3 proving non-existence of letsencrypt.org/DS: The salt value for an NSEC3 record should be empty. See RFC 9276, Sec. 3.1.
  • org/DS (alg 8, id 26974): The server appears to support DNS cookies but did not return a COOKIE option. See RFC 7873, Sec. 5.2.3. (2001:7fd::1, UDP_-_EDNS0_4096_D_KN)
  • org/DS (alg 8, id 26974): The server appears to support DNS cookies but did not return a COOKIE option. See RFC 7873, Sec. 5.2.3. (2001:7fd::1, UDP_-_EDNS0_4096_D_KN)
  • letsencrypt.org/DS has warnings; 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
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DNSSEC authentication graph