nsb.webleasee.com has no CNAME records.
Question and response
Question
dig nsb.webleasee.com. NS
Answer
The response has no answer records.
Authority
webleasee.com. 719 SOA nsa.webleasee.com. fdelbo47.gmail.com. 2025061504 7200 3600 1209600 10800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0