shell:$ nslookup -timeout=2 -retry=1 'cdn.refersion.com'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
cdn.refersion.com	canonical name = d3ei4ipx30jdgx.cloudfront.net.
Name:	d3ei4ipx30jdgx.cloudfront.net
Address: 52.85.12.7
Name:	d3ei4ipx30jdgx.cloudfront.net
Address: 52.85.12.28
Name:	d3ei4ipx30jdgx.cloudfront.net
Address: 52.85.12.41
Name:	d3ei4ipx30jdgx.cloudfront.net
Address: 52.85.12.123