shell:$ nslookup -timeout=2 -retry=1 'intldlgs.qq.com'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
intldlgs.qq.com	canonical name = intldlgs.qq.com.tegsea.tc.qq.com.
intldlgs.qq.com.tegsea.tc.qq.com	canonical name = intldlgs.qq.com.cdn.ettdnsv.com.
intldlgs.qq.com.cdn.ettdnsv.com	canonical name = intldlgs.qq.com.edgesuite.net.
intldlgs.qq.com.edgesuite.net	canonical name = a1807.b.akamai.net.
Name:	a1807.b.akamai.net
Address: 23.199.54.103
Name:	a1807.b.akamai.net
Address: 23.199.54.110