ns3.sectigodns.com has no NS records.
NS records for this zone are defined at sectigodns.com.
NS records for this zone are defined at sectigodns.com.
Question and response
Question
dig ns3.sectigodns.com. NS
Answer
The response has no answer records.
Authority
sectigodns.com. 900 SOA ns-1836.awsdns-37.co.uk. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0