shell:$ nslookup -timeout=2 -retry=1 'wan.video'
Server:		127.0.0.53
Address:	127.0.0.53#53

Non-authoritative answer:
wan.video	canonical name = ga-bp11a19c34cp53kskrcaw.aliyunga0017.com.
Name:	ga-bp11a19c34cp53kskrcaw.aliyunga0017.com
Address: 47.77.34.140
Name:	ga-bp11a19c34cp53kskrcaw.aliyunga0017.com
Address: 47.77.36.69