Question and response
Question
dig ns1.swservers.com. AAAA
Answer
ns1.swservers.com. 4 CNAME swservers.com.
Authority
swservers.com. 2975 SOA dns.swservers.com. hostmaster.swservers.com. 1736564617 43200 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0