ns.lahai.com has no CNAME records.
Question and response
Question
dig ns.lahai.com. NS
Answer
The response has no answer records.
Authority
lahai.com. 7111 SOA pao.lahai.com. gaurab.lahai.com. 2021081601 36000 3600 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0