cclean01.netvigator.com has no CNAME records.
Question and response
Question
dig cclean01.netvigator.com. NS
Answer
The response has no answer records.
Authority
netvigator.com. 993 SOA ns5.netvigator.com. dnsadmin.netvigator.com. 2026021201 10800 3600 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0