www.dev2.test-cdn.gBLNET.ru has no CNAME records.
Question and response
Question
dig www.dev2.test-cdn.gBLNET.ru. NS
Answer
The response has no answer records.
Authority
test-cdn.gBLNET.ru. 3493 SOA ns.gBLNET.ru. vvv.gBLNET.ru. 2025103101 10800 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0