www-rdg-1.memset.com has no NS records.
NS records for this zone are defined at memset.com.
NS records for this zone are defined at memset.com.
Question and response
Question
dig www-rdg-1.memset.com. NS
Answer
The response has no answer records.
Authority
memset.com. 2560 SOA ns1.memset.com. hostmaster.memset.com. 1773638115 16384 2048 1048576 2560
Additional
. 0 OPT ; payload 1680, xrcode 0, version 0, flags 0