office.csinet.net has no CNAME records.
Question and response
Question
dig office.csinet.net. NS
Answer
The response has no answer records.
Authority
csinet.net. 416 SOA ns09.domaincontrol.com. dns.jomax.net. 2025031101 28800 7200 604800 600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0