Question and response
Question
dig f35341fe.suducdn.com. NS
Answer
f35341fe.suducdn.com. 5 CNAME cn.suducdn.com.
Authority
suducdn.com. 579 SOA ns1.alidns.com. hostmaster.hichina.com. 2026011209 3600 1200 86400 600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0