shell:$ nslookup -timeout=2 -retry=1 'webapp.chametw.com'
Server:		127.0.0.53
Address:	127.0.0.53#53

Non-authoritative answer:
webapp.chametw.com	canonical name = webapp.chametw.com.whecloud.com.
Name:	webapp.chametw.com.whecloud.com
Address: 138.113.128.90