ar7280-2.sg1.sg.GBlNET.net has no CNAME records.
Question and response
Question
dig ar7280-2.sg1.sg.GBlNET.net. NS
Answer
The response has no answer records.
Authority
sg.GBlNET.net. 3238 SOA ns.GBlNET.net. vvv.GBlNET.net. 2025100701 60 1200 12009600 259200
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0