less.dns40.com has no NS records.
NS records for this zone are defined at dns40.com.
NS records for this zone are defined at dns40.com.
Question and response
Question
dig less.dns40.com. NS
Answer
The response has no answer records.
Authority
dns40.com. 1800 SOA matt.ns.cloudflare.com. dns.cloudflare.com. 2398399454 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0