interdom1.yellducal.com has no NS records.
NS records for this zone are defined at yellducal.com.
NS records for this zone are defined at yellducal.com.
Question and response
Question
dig interdom1.yellducal.com. NS
Answer
The response has no answer records.
Authority
yellducal.com. 300 SOA ns1120.ui-dns.org. hostmaster.1and1.com. 2017020408 28800 7200 604800 300
Additional
. 0 OPT ; payload 1220, xrcode 0, version 0, flags 0