i.ntpns.org has no CNAME records.
Question and response
Question
dig i.ntpns.org. NS
Answer
The response has no answer records.
Authority
ntpns.org. 1016 SOA ns1.us.bitnames.com. dnsoper.bitnames.com. 2026022200 600 900 3628800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0