ns1.amis.net has no CNAME records.
Question and response
Question
dig ns1.amis.net. NS
Answer
The response has no answer records.
Authority
amis.net. 2503 SOA ns1.amis.net. hostmaster.amis.net. 2025052900 28800 7200 1209600 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0