ns5.cdnetdns.cn has no CNAME records.
Question and response
Question
dig ns5.cdnetdns.cn. NS
Answer
The response has no answer records.
Authority
cdnetdns.cn. 3600 SOA ns1.cdnetdns.cn. domain-cn.txnetworks.cn. 2023080802 2000 300 181400 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0