ac.uk
Updated:
2023-07-24 17:18:04 UTC (522 days ago)
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Notices
DNSSEC Authentication Chain
RRset status
Secure (4)
- ac.uk/MX
- ac.uk/NS
- ac.uk/NSEC3PARAM
- ac.uk/SOA
DNSKEY/DS/NSEC status
Secure (10)
- ./DNSKEY (alg 8, id 11019)
- ./DNSKEY (alg 8, id 20326)
- ac.uk/DNSKEY (alg 8, id 11031)
- ac.uk/DNSKEY (alg 8, id 45874)
- ac.uk/DNSKEY (alg 8, id 54274)
- ac.uk/DNSKEY (alg 8, id 63490)
- ac.uk/DS (alg 8, id 45874)
- uk/DNSKEY (alg 8, id 43056)
- uk/DNSKEY (alg 8, id 43876)
- uk/DS (alg 8, id 43876)
Delegation status
Secure (2)
- . to uk
- uk to ac.uk
Notices
Errors (22)
- ac.uk zone: The server(s) were not responsive to queries over TCP. See RFC 1035, Sec. 4.2. (193.174.75.58, 2001:638:d:b103::1)
- ac.uk/DNSKEY: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (193.174.75.58, 2001:638:d:b103::1, UDP_-_EDNS0_4096_D_KN)
- ac.uk/DNSKEY: No response was received from the server over UDP (tried 4 times). See RFC 1035, Sec. 4.2. (193.174.75.58, 2001:638:d:b103::1, UDP_-_EDNS0_512_D_KN)
- ac.uk/MX: No response was received from the server over TCP (tried 12 times). See RFC 1035, Sec. 4.2. (2001:638:d:b103::1, TCP_-_EDNS0_4096_D_KN)
- ac.uk/MX: No response was received from the server over TCP (tried 7 times). See RFC 1035, Sec. 4.2. (193.174.75.58, TCP_-_EDNS0_4096_D)
- ac.uk/NS: DNSSEC was effectively downgraded because no response was received from the server over UDP (tried 10 times) with the DO bit set. See RFC 4035, Sec. 3.2.1. (2001:638:d:b103::1, UDP_-_EDNS0_4096_)
- ac.uk/NS: No response was received from the server over UDP (tried 10 times) until the DO EDNS flag was cleared (however, this server appeared to respond legitimately to other queries with the DO EDNS flag set). See RFC 6891, Sec. 6.1.4. (2001:638:d:b103::1, UDP_-_EDNS0_4096_D_KN)
- ac.uk/NS: No response was received from the server over UDP (tried 12 times). See RFC 1035, Sec. 4.2. (193.174.75.58, UDP_-_NOEDNS_)
- ac.uk/NS: The DNSSEC records necessary to validate the response could not be retrieved from the server. See RFC 4035, Sec. 3.1.1, RFC 4035, Sec. 3.1.3. (2001:638:d:b103::1, UDP_-_EDNS0_4096_D_KN)
- ac.uk/SOA: DNSSEC was effectively downgraded because no response was received from the server over UDP (tried 11 times) with EDNS enabled. See RFC 6891, Sec. 7, RFC 2671, Sec. 5.3. (2001:638:d:b103::1, UDP_-_NOEDNS__0x20)
- ac.uk/SOA: No response was received from the server over TCP (tried 3 times). See RFC 1035, Sec. 4.2. (193.174.75.58, 2001:638:d:b103::1, TCP_-_EDNS0_4096_D_N)
- ac.uk/SOA: No response was received from the server over UDP (tried 11 times) until EDNS was disabled (however, this server appeared to respond legitimately to other queries with EDNS enabled). See RFC 6891, Sec. 6.2.6. (2001:638:d:b103::1, UDP_-_EDNS0_4096_D_KN_0x20)
- ac.uk/SOA: No response was received from the server over UDP (tried 5 times). See RFC 1035, Sec. 4.2. (2001:638:d:b103::1, UDP_-_EDNS0_512_)
- ac.uk/SOA: No response was received from the server over UDP (tried 9 times). See RFC 1035, Sec. 4.2. (2001:638:d:b103::1, UDP_-_EDNS0_512_)
- ac.uk/SOA: The DNSSEC records necessary to validate the response could not be retrieved from the server. See RFC 4035, Sec. 3.1.1, RFC 4035, Sec. 3.1.3. (2001:638:d:b103::1, UDP_-_EDNS0_4096_D_KN_0x20)
- uk zone: The server(s) were not responsive to queries over UDP. See RFC 1035, Sec. 4.2. (2610:a1:1009::3, 2610:a1:1010::3)
- 0x2piosak8.ac.uk/A has errors; select the "Denial of existence" DNSSEC option to see them.
- ac.uk/A has errors; select the "Denial of existence" DNSSEC option to see them.
- ac.uk/AAAA has errors; select the "Denial of existence" DNSSEC option to see them.
- ac.uk/CNAME has errors; select the "Denial of existence" DNSSEC option to see them.
- ac.uk/DNSKEY has errors; select the "Denial of existence" DNSSEC option to see them.
- ac.uk/TXT has errors; select the "Denial of existence" DNSSEC option to see them.
Warnings (3)
- ac.uk/NSEC3PARAM: No response was received from the server over UDP (tried 6 times) until the COOKIE EDNS option was removed (however, this server appeared to respond legitimately to other queries with the COOKIE EDNS option present). See RFC 6891, Sec. 6.1.2. (193.174.75.58, UDP_-_EDNS0_4096_D_KN)
- ac.uk/SOA: No response was received from the server over UDP (tried 6 times) until the COOKIE EDNS option was removed (however, this server appeared to respond legitimately to other queries with the COOKIE EDNS option present). See RFC 6891, Sec. 6.1.2. (193.174.75.58, UDP_-_EDNS0_4096_D_KN_0x20)
- ac.uk/CNAME has warnings; select the "Denial of existence" DNSSEC option to see them.
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