ns2.blnkserver.com has no CNAME records.
Question and response
Question
dig ns2.blnkserver.com. NS
Answer
The response has no answer records.
Authority
blnkserver.com. 10800 SOA blnkserver.com. admin.benosborne.com. 2025081911 86400 7200 2419200 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0