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

Non-authoritative answer:
pro.x.com	canonical name = pro.x.com.cdn.cloudflare.net.
Name:	pro.x.com.cdn.cloudflare.net
Address: 172.66.0.227
Name:	pro.x.com.cdn.cloudflare.net
Address: 162.159.140.229