ar7280-1.tsc.sof.gblnet.net has no CNAME records.
Question and response
Question
dig ar7280-1.tsc.sof.gblnet.net. NS
Answer
The response has no answer records.
Authority
sof.gblnet.net. 5296 SOA ns.gblnet.net. vvv.gblnet.net. 2025092601 10800 1200 1209600 259200
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0