columbia.edu
Updated:
2022-02-21 13:58:49 UTC (1005 days ago)
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Notices
DNSSEC Authentication Chain
RRset status
Insecure (10)
- columbia.edu/A
- columbia.edu/A (NODATA)
- columbia.edu/MX
- columbia.edu/MX (NODATA)
- columbia.edu/NS
- columbia.edu/NS (NODATA)
- columbia.edu/SOA
- columbia.edu/SOA (NODATA)
- columbia.edu/TXT
- columbia.edu/TXT (NODATA)
Secure (2)
- edu/SOA
- edu/SOA
DNSKEY/DS/NSEC status
Secure (6)
- ./DNSKEY (alg 8, id 20326)
- ./DNSKEY (alg 8, id 9799)
- NSEC3 proving non-existence of columbia.edu/DS
- edu/DNSKEY (alg 8, id 28065)
- edu/DNSKEY (alg 8, id 47450)
- edu/DS (alg 8, id 28065)
Delegation status
Insecure (1)
- edu to columbia.edu
Secure (1)
- . to edu
Notices
Errors (15)
- columbia.edu zone: The server(s) did not respond authoritatively for the namespace. See RFC 1035, Sec. 4.1.1. (158.143.40.10)
- columbia.edu zone: The server(s) were not responsive to queries over UDP. See RFC 1035, Sec. 4.2. (2001:550:1:a::d, 2001:550:1:b::d, 2001:978:1:a::d, 2001:978:1:b::d)
- columbia.edu/A (NODATA): The response was an upward referral. See https://www.dns-oarc.net/oarc/articles/upward-referrals-considered-harmful. (158.143.40.10, UDP_-_EDNS0_4096_D)
- columbia.edu/A: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (2001:550:1:a::d, 2001:550:1:b::d, 2001:978:1:a::d, 2001:978:1:b::d, UDP_-_NOEDNS_)
- columbia.edu/DNSKEY: The response had an invalid RCODE (FORMERR). See RFC 1035, Sec. 4.1.1. (158.143.40.10, 158.143.96.8, UDP_-_EDNS0_512_D_KN)
- columbia.edu/MX (NODATA): The response was an upward referral. See https://www.dns-oarc.net/oarc/articles/upward-referrals-considered-harmful. (158.143.40.10, UDP_-_EDNS0_4096_D)
- columbia.edu/MX: The response had an invalid RCODE (FORMERR). See RFC 1035, Sec. 4.1.1. (158.143.40.10, 158.143.96.8, UDP_-_EDNS0_512_D_KN)
- columbia.edu/NS (NODATA): The response was an upward referral. See https://www.dns-oarc.net/oarc/articles/upward-referrals-considered-harmful. (158.143.40.10, UDP_-_EDNS0_4096_D)
- columbia.edu/NS: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (2001:550:1:a::d, 2001:550:1:b::d, 2001:978:1:a::d, 2001:978:1:b::d, UDP_-_NOEDNS_)
- columbia.edu/SOA (NODATA): The response was an upward referral. See https://www.dns-oarc.net/oarc/articles/upward-referrals-considered-harmful. (158.143.40.10, TCP_-_EDNS0_4096_D, UDP_-_EDNS0_4096_D, UDP_-_EDNS0_4096_D_0x20)
- columbia.edu/TXT (NODATA): The response was an upward referral. See https://www.dns-oarc.net/oarc/articles/upward-referrals-considered-harmful. (158.143.40.10, UDP_-_EDNS0_4096_D)
- columbia.edu/DNSKEY has errors; select the "Denial of existence" DNSSEC option to see them.
- columbia.edu/CNAME has errors; select the "Denial of existence" DNSSEC option to see them.
- columbia.edu/NSEC3PARAM has errors; select the "Denial of existence" DNSSEC option to see them.
- columbia.edu/AAAA has errors; select the "Denial of existence" DNSSEC option to see them.
Warnings (17)
- columbia.edu/A (NODATA): The response had an invalid RCODE (FORMERR) until the NSID EDNS option was removed. See RFC 6891, Sec. 6.1.2. (158.143.40.10, UDP_-_EDNS0_4096_D_KN)
- columbia.edu/A: The response had an invalid RCODE (FORMERR) until the NSID EDNS option was removed. See RFC 6891, Sec. 6.1.2. (158.143.96.8, UDP_-_EDNS0_4096_D_KN)
- columbia.edu/MX (NODATA): The response had an invalid RCODE (FORMERR) until the NSID EDNS option was removed. See RFC 6891, Sec. 6.1.2. (158.143.40.10, UDP_-_EDNS0_4096_D_KN)
- columbia.edu/MX: The response had an invalid RCODE (FORMERR) until the NSID EDNS option was removed. See RFC 6891, Sec. 6.1.2. (158.143.96.8, UDP_-_EDNS0_4096_D_KN)
- columbia.edu/NS (NODATA): The response had an invalid RCODE (FORMERR) until the NSID EDNS option was removed. See RFC 6891, Sec. 6.1.2. (158.143.40.10, UDP_-_EDNS0_4096_D_KN)
- columbia.edu/NS: The response had an invalid RCODE (FORMERR) until the NSID EDNS option was removed. See RFC 6891, Sec. 6.1.2. (158.143.96.8, UDP_-_EDNS0_4096_D_KN)
- columbia.edu/SOA (NODATA): The response had an invalid RCODE (FORMERR) until the NSID EDNS option was removed. See RFC 6891, Sec. 6.1.2. (158.143.40.10, TCP_-_EDNS0_4096_D_N)
- columbia.edu/SOA (NODATA): The response had an invalid RCODE (FORMERR) until the NSID EDNS option was removed. See RFC 6891, Sec. 6.1.2. (158.143.40.10, UDP_-_EDNS0_4096_D_KN, UDP_-_EDNS0_4096_D_KN_0x20)
- columbia.edu/SOA: The response had an invalid RCODE (FORMERR) until the NSID EDNS option was removed. See RFC 6891, Sec. 6.1.2. (158.143.96.8, TCP_-_EDNS0_4096_D_N)
- columbia.edu/SOA: The response had an invalid RCODE (FORMERR) until the NSID EDNS option was removed. See RFC 6891, Sec. 6.1.2. (158.143.96.8, UDP_-_EDNS0_4096_D_KN, UDP_-_EDNS0_4096_D_KN_0x20)
- columbia.edu/TXT (NODATA): The response had an invalid RCODE (FORMERR) until the NSID EDNS option was removed. See RFC 6891, Sec. 6.1.2. (158.143.40.10, UDP_-_EDNS0_4096_D_KN)
- columbia.edu/TXT: The response had an invalid RCODE (FORMERR) until the NSID EDNS option was removed. See RFC 6891, Sec. 6.1.2. (158.143.96.8, UDP_-_EDNS0_4096_D_KN)
- columbia.edu/DNSKEY has warnings; select the "Denial of existence" DNSSEC option to see them.
- columbia.edu/CNAME has warnings; select the "Denial of existence" DNSSEC option to see them.
- o1yt84wiql.columbia.edu/A has warnings; select the "Denial of existence" DNSSEC option to see them.
- columbia.edu/NSEC3PARAM has warnings; select the "Denial of existence" DNSSEC option to see them.
- columbia.edu/AAAA has warnings; select the "Denial of existence" DNSSEC option to see them.
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