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

Non-authoritative answer:
courses.marvelousmnemonics.com	canonical name = d3vtnezq0pfk9v.cloudfront.net.
Name:	d3vtnezq0pfk9v.cloudfront.net
Address: 108.159.227.98
Name:	d3vtnezq0pfk9v.cloudfront.net
Address: 108.159.227.129
Name:	d3vtnezq0pfk9v.cloudfront.net
Address: 108.159.227.55
Name:	d3vtnezq0pfk9v.cloudfront.net
Address: 108.159.227.102
Name:	d3vtnezq0pfk9v.cloudfront.net
Address: 2600:9000:233d:600:7:ec0b:58c0:93a1
Name:	d3vtnezq0pfk9v.cloudfront.net
Address: 2600:9000:233d:3a00:7:ec0b:58c0:93a1
Name:	d3vtnezq0pfk9v.cloudfront.net
Address: 2600:9000:233d:4400:7:ec0b:58c0:93a1
Name:	d3vtnezq0pfk9v.cloudfront.net
Address: 2600:9000:233d:8c00:7:ec0b:58c0:93a1
Name:	d3vtnezq0pfk9v.cloudfront.net
Address: 2600:9000:233d:8a00:7:ec0b:58c0:93a1
Name:	d3vtnezq0pfk9v.cloudfront.net
Address: 2600:9000:233d:800:7:ec0b:58c0:93a1
Name:	d3vtnezq0pfk9v.cloudfront.net
Address: 2600:9000:233d:d600:7:ec0b:58c0:93a1
Name:	d3vtnezq0pfk9v.cloudfront.net
Address: 2600:9000:233d:e200:7:ec0b:58c0:93a1