beth.nodeservers.net has no CNAME records.
Question and response
Question
dig beth.nodeservers.net. NS
Answer
The response has no answer records.
Authority
nodeservers.net. 1800 SOA brad.ns.cloudflare.com. dns.cloudflare.com. 2396732921 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0