shell:$ nslookup -timeout=2 -retry=1 'online.lifelonglearning.jhu.edu'
Server:		127.0.0.53
Address:	127.0.0.53#53

Non-authoritative answer:
online.lifelonglearning.jhu.edu	canonical name = d1r8uvfrvo9h6y.cloudfront.net.
Name:	d1r8uvfrvo9h6y.cloudfront.net
Address: 3.162.3.113
Name:	d1r8uvfrvo9h6y.cloudfront.net
Address: 3.162.3.67
Name:	d1r8uvfrvo9h6y.cloudfront.net
Address: 3.162.3.51
Name:	d1r8uvfrvo9h6y.cloudfront.net
Address: 3.162.3.58