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

Non-authoritative answer:
www.renren.com	canonical name = www.renren.com.a.bdydns.com.
www.renren.com.a.bdydns.com	canonical name = opencdnkav6.jomodns.com.
Name:	opencdnkav6.jomodns.com
Address: 180.97.198.41
Name:	opencdnkav6.jomodns.com
Address: 240e:978:6402::b461:c629