shell:$ nslookup -timeout=2 -retry=1 'cdn1.smartadserver.com'
Server:		127.0.0.53
Address:	127.0.0.53#53

Non-authoritative answer:
cdn1.smartadserver.com	canonical name = cdn1.smartadserver.com.edgesuite.net.
cdn1.smartadserver.com.edgesuite.net	canonical name = a1993.dscb.akamai.net.
Name:	a1993.dscb.akamai.net
Address: 23.223.17.174
Name:	a1993.dscb.akamai.net
Address: 23.223.17.179
Name:	a1993.dscb.akamai.net
Address: 2600:140a:5000:d::210:aac8
Name:	a1993.dscb.akamai.net
Address: 2600:140a:5000:d::210:aac7