ns2.vhsl.net has no CNAME records.
Question and response
Question
dig ns2.vhsl.net. NS
Answer
The response has no answer records.
Authority
vhsl.net. 4018 SOA ns1.vhsl.net. postmaster.vhsl.net. 2026030612 28800 7200 1209600 10800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0