ns4.lidnet.net has no CNAME records.
Question and response
Question
dig ns4.lidnet.net. NS
Answer
The response has no answer records.
Authority
lidnet.net. 2089 SOA ns.lidnet.net. hostmaster.lidnet.net. 2026021205 900 7200 2419200 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0