shell:$ nslookup -timeout=2 -retry=1 'cdn.i-joox.com'
Server:		127.0.0.53
Address:	127.0.0.53#53

Non-authoritative answer:
cdn.i-joox.com	canonical name = cdn.i-joox.com.cdn.dnsv1.com.
cdn.i-joox.com.cdn.dnsv1.com	canonical name = buq2y5eb.ovslegodl.sched.ovscdns.com.
Name:	buq2y5eb.ovslegodl.sched.ovscdns.com
Address: 43.175.144.54
Name:	buq2y5eb.ovslegodl.sched.ovscdns.com
Address: 43.175.144.60
Name:	buq2y5eb.ovslegodl.sched.ovscdns.com
Address: 43.175.145.37