ns3.aptalaska.net has no CNAME records.
Question and response
Question
dig ns3.aptalaska.net. NS
Answer
The response has no answer records.
Authority
aptalaska.net. 600 SOA ns1.aptalaska.net. dnsadmin.aptalaska.net. 2026018697 10800 3600 604800 600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0