ns57.superdnssite.com has no CNAME records.
Question and response
Question
dig ns57.superdnssite.com. NS
Answer
The response has no answer records.
Authority
superdnssite.com. 9720 SOA ns1.superdnssite.com. mrhhosting.gmail.com. 2026012101 3600 1800 1209600 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0