cluster.webtelpro.com has no CNAME records.
Question and response
Question
dig cluster.webtelpro.com. NS
Answer
The response has no answer records.
Authority
webtelpro.com. 2581 SOA ns1.neonova.net. hostmaster.neonova.net. 2005122901 3600 1800 1209600 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0