blockpage.nextdns.io has no NS records.
NS records for this zone are defined at nextdns.io.
NS records for this zone are defined at nextdns.io.
Question and response
Question
dig blockpage.nextdns.io. NS
Answer
The response has no answer records.
Authority
nextdns.io. 1800 SOA dawn.ns.cloudflare.com. dns.cloudflare.com. 2398774266 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0