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DNSViz: A DNS visualization tool

www.uol.com.br

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

RRset statusRRset status

Insecure (11)
  • dftex7xfha8fh.cloudfront.net/A
  • dftex7xfha8fh.cloudfront.net/A
  • dftex7xfha8fh.cloudfront.net/AAAA
  • dftex7xfha8fh.cloudfront.net/AAAA
  • dftex7xfha8fh.cloudfront.net/AAAA
  • dftex7xfha8fh.cloudfront.net/AAAA
  • dftex7xfha8fh.cloudfront.net/AAAA
  • dftex7xfha8fh.cloudfront.net/AAAA
  • dftex7xfha8fh.cloudfront.net/AAAA
  • dftex7xfha8fh.cloudfront.net/AAAA
  • www.uol.com.br/CNAME
Secure (3)
  • com.br/SOA
  • net/SOA
  • net/SOA

DNSKEY/DS/NSEC statusDNSKEY/DS/NSEC status

Secure (12)
  • ./DNSKEY (alg 8, id 20326)
  • ./DNSKEY (alg 8, id 26116)
  • NSEC3 proving non-existence of cloudfront.net/DS
  • NSEC3 proving non-existence of uol.com.br/DS
  • br/DNSKEY (alg 13, id 20940)
  • br/DNSKEY (alg 13, id 2471)
  • br/DS (alg 13, id 2471)
  • com.br/DNSKEY (alg 13, id 48846)
  • com.br/DS (alg 13, id 48846)
  • net/DNSKEY (alg 8, id 15314)
  • net/DNSKEY (alg 8, id 35886)
  • net/DS (alg 8, id 35886)

Delegation statusDelegation status

Insecure (3)
  • cloudfront.net to dftex7xfha8fh.cloudfront.net
  • com.br to uol.com.br
  • net to cloudfront.net
Secure (3)
  • . to br
  • . to net
  • br to com.br

NoticesNotices

Errors (2)
  • NSEC3 proving non-existence of uol.com.br/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 uol.com.br/DS: An iterations count of 0 must be used in NSEC3 records to alleviate computational burdens. See RFC 9276, Sec. 3.1.
Warnings (4)
  • NSEC3 proving non-existence of uol.com.br/DS: The salt value for an NSEC3 record should be empty. See RFC 9276, Sec. 3.1.
  • NSEC3 proving non-existence of uol.com.br/DS: The salt value for an NSEC3 record should be empty. See RFC 9276, Sec. 3.1.
  • cloudfront.net to dftex7xfha8fh.cloudfront.net: The server(s) for the parent zone (cloudfront.net) responded with a referral instead of answering authoritatively for the DS RR type. See RFC 4034, Sec. 5. (205.251.193.162, 205.251.194.154, 205.251.197.26, 205.251.198.61, 2600:9000:5301:a200::1, 2600:9000:5302:9a00::1, 2600:9000:5305:1a00::1, 2600:9000:5306:3d00::1, UDP_-_EDNS0_4096_D_K)
  • net to cloudfront.net: Authoritative AAAA records exist for ns-666.awsdns-19.net, but there are no corresponding AAAA glue records. See RFC 1034, Sec. 4.2.2.

DNSKEY legend

Full legend
SEP bit setSEP bit set
Revoke bit setRevoke bit set
Trust anchorTrust anchor
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DNSSEC authentication graph