ans2.hinet.net has no CNAME records.
Question and response
Question
dig ans2.hinet.net. NS
Answer
The response has no answer records.
Authority
hinet.net. 8846 SOA ans1.hinet.net. hostmaster.hinet.net. 2026030401 300 1800 1209600 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0