ac.uk/CDNSKEY has errors; select the "Denial of existence" DNSSEC option to see them.
mzx1a.7kx3v.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/MX has errors; select the "Denial of existence" DNSSEC option to see them.
ac.uk/CDS 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 (1)
ac.uk/SOA: 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. (193.174.75.58, UDP_-_EDNS0_4096_D_KN)