whmcs01.encircalabs.com has no NS records.
NS records for this zone are defined at encircalabs.com.
NS records for this zone are defined at encircalabs.com.
Question and response
Question
dig whmcs01.encircalabs.com. NS
Answer
The response has no answer records.
Authority
encircalabs.com. 900 SOA ns-1230.awsdns-25.org. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0