b.nic.vg has no CNAME records.
Question and response
Question
dig b.nic.vg. NS
Answer
The response has no answer records.
Authority
nic.vg. 2295 SOA a.nic.vg. hostmaster.centralnic-dns.com. 1770997414 300 300 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0