shell:$ nslookup -timeout=2 -retry=1 'prod.1.slot.cdn.salesforce-communities.com'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
prod.1.slot.cdn.salesforce-communities.com	canonical name = location.force.com.
location.force.com	canonical name = location.l.force.com.
Name:	location.l.force.com
Address: 136.146.18.11
Name:	location.l.force.com
Address: 136.146.17.11
Name:	location.l.force.com
Address: 136.146.23.5
Name:	location.l.force.com
Address: 136.146.21.5
Name:	location.l.force.com
Address: 136.146.22.5
Name:	location.l.force.com
Address: 136.146.16.11