Question and response
Question
dig 0.53.121.188.host.secureserver.net. A
Answer
0.53.121.188.host.secureserver.net. 300 A 188.121.53.0
Authority
53.121.188.host.secureserver.net. 86400 NS ans02.domaincontrol.com.
53.121.188.host.secureserver.net. 86400 NS ans01.domaincontrol.com.
Additional
. 0 OPT ; payload 1280, xrcode 0, version 0, flags 0