nordns.crowncloud.net has no CNAME records.
Question and response
Question
dig nordns.crowncloud.net. NS
Answer
The response has no answer records.
Authority
crowncloud.net. 1768 SOA elsa.ns.cloudflare.com. dns.cloudflare.com. 2398504998 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0