Zone apex
Start of authority
Email
Serial
2026032552
Refresh
1h
Retry
30m
Expire
7d
Negative cache TTL
20m
Question and response
Question
dig cl.cam.ac.uk. SOA
Answer
cl.cam.ac.uk. 21600 SOA dns0.cl.cam.ac.uk. hostmaster.cl.cam.ac.uk. 2026032552 3600 1800 604800 1200
Authority
cl.cam.ac.uk. 21600 NS ns3.mythic-beasts.com.
cl.cam.ac.uk. 21600 NS auth0.dns.cam.ac.uk.
cl.cam.ac.uk. 21600 NS ns2.ic.ac.uk.
cl.cam.ac.uk. 21600 NS ns1.mythic-beasts.com.
cl.cam.ac.uk. 21600 NS dns0.cl.cam.ac.uk.
cl.cam.ac.uk. 21600 NS dns0.eng.cam.ac.uk.
cl.cam.ac.uk. 21600 NS dns1.cl.cam.ac.uk.
Additional
dns0.cl.cam.ac.uk. 21600 A 128.232.0.19
dns1.cl.cam.ac.uk. 21600 A 128.232.0.18
dns0.cl.cam.ac.uk. 21600 AAAA 2a05:b400:110:0:0:0:d:a0
dns1.cl.cam.ac.uk. 21600 AAAA 2001:630:212:200:0:0:d:a1
dns1.cl.cam.ac.uk. 21600 AAAA 2a05:b400:110:0:0:0:d:a1
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0