ns1.thomasmonnington.com has no AAAA records.
Question and response
Question
dig ns1.thomasmonnington.com. AAAA
Answer
ns1.thomasmonnington.com. 5 CNAME thomasmonnington.com.
Authority
thomasmonnington.com. 2027 SOA ns-767.awsdns-31.net. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0