sec1.encirca.com has no NS records.
NS records for this zone are defined at encirca.com.
NS records for this zone are defined at encirca.com.
Question and response
Question
dig sec1.encirca.com. NS
Answer
The response has no answer records.
Authority
encirca.com. 600 SOA dnssec1.encirca.net. dnsmaster.encirca.com. 2026021901 43200 600 1209600 600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0