View on GitHub

DNSViz: A DNS visualization tool

outlook-com.olc.protection.outlook.com

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

RRset statusRRset status

Insecure (10)
  • olc.protection.outlook.com/SOA
  • olc.protection.outlook.com/SOA
  • outlook-com.olc.protection.outlook.com/A
  • outlook-com.olc.protection.outlook.com/A
  • outlook-com.olc.protection.outlook.com/A
  • outlook-com.olc.protection.outlook.com/A
  • outlook.com/SOA
  • outlook.com/SOA
  • outlook.com/SOA
  • outlook.com/SOA
Secure (1)
  • com/SOA

DNSKEY/DS/NSEC statusDNSKEY/DS/NSEC status

Secure (7)
  • ./DNSKEY (alg 8, id 20326)
  • ./DNSKEY (alg 8, id 60955)
  • ./DNSKEY (alg 8, id 951)
  • NSEC3 proving non-existence of outlook.com/DS
  • com/DNSKEY (alg 8, id 30909)
  • com/DNSKEY (alg 8, id 36739)
  • com/DS (alg 8, id 30909)

Delegation statusDelegation status

Insecure (3)
  • com to outlook.com
  • outlook.com to protection.outlook.com
  • protection.outlook.com to olc.protection.outlook.com
Secure (1)
  • . to com

NoticesNotices

Errors (3)
  • outlook.com zone: The server(s) responded over TCP with a malformed response or with an invalid RCODE. See RFC 1035, Sec. 4.1.1. (104.47.40.8)
  • protection.outlook.com to olc.protection.outlook.com: An SOA RR with owner name (olc.protection.outlook.com) not matching the zone name (protection.outlook.com) was returned with the NODATA response. See RFC 1034, Sec. 4.3.4, RFC 2308, Sec. 2.2. (104.47.2.8, 104.47.38.8, 104.47.40.8, 104.47.44.8, 104.47.124.8, UDP_-_EDNS0_4096_D_KN)
  • outlook-com.olc.protection.outlook.com/AAAA has errors; select the "Denial of existence" DNSSEC option to see them.
Warnings (1)
  • outlook.com to protection.outlook.com: 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. (104.47.40.8, 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
Warning JavaScript is required to make the graph below interactive.
DNSSEC authentication graph