shell:$ nslookup -timeout=2 -retry=1 'alxcdn.ztdheros.com'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
alxcdn.ztdheros.com	canonical name = alxcdn.ztdheros.com.lb.udnchina.net.
alxcdn.ztdheros.com.lb.udnchina.net	canonical name = alxcdn.ztdheros.com.sw.swiftserve.com.
alxcdn.ztdheros.com.sw.swiftserve.com	canonical name = alxcdn.ztdheros.com.cloudscdn.net.
Name:	alxcdn.ztdheros.com.cloudscdn.net
Address: 104.18.62.121
Name:	alxcdn.ztdheros.com.cloudscdn.net
Address: 104.18.56.138
Name:	alxcdn.ztdheros.com.cloudscdn.net
Address: 2606:4700:311f::6812:3e79
Name:	alxcdn.ztdheros.com.cloudscdn.net
Address: 2606:4700:311f::6812:388a