shell:$ nslookup -timeout=2 -retry=1 'sso.secureserver.net'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
sso.secureserver.net	canonical name = sso.secureserver.net-v1.edgekey.net.
sso.secureserver.net-v1.edgekey.net	canonical name = e8843.x.akamaiedge.net.
Name:	e8843.x.akamaiedge.net
Address: 23.61.47.71