Question and response
Question
dig m.serendec.co.jp. NS
Answer
m.serendec.co.jp. 5 CNAME mobile.dudamoblie.com.
Authority
dudamoblie.com. 10649 SOA ns1.dnsowl.com. hostmaster.dnsowl.com. 1773289635 7200 1800 1209600 600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0