ns2.ascio.net has no CNAME records.
Question and response
Question
dig ns2.ascio.net. NS
Answer
The response has no answer records.
Authority
ascio.net. 10800 SOA dns1.cscdns.net. hostmaster.cscdns.net. 2017091813 43200 3600 864000 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0