ns1.interdns.co.uk has no NS records.
NS records for this zone are defined at interdns.co.uk.
NS records for this zone are defined at interdns.co.uk.
Question and response
Question
dig ns1.interdns.co.uk. NS
Answer
The response has no answer records.
Authority
interdns.co.uk. 3600 SOA ns1.interdns.co.uk. admin.interdns.co.uk. 1410993336 28800 7200 604800 3600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0