shell:$ nslookup -timeout=2 -retry=1 'professionalonline2.mit.edu'
Server:		127.0.0.53
Address:	127.0.0.53#53

Non-authoritative answer:
professionalonline2.mit.edu	canonical name = d3gj4gpak7tb8.cloudfront.net.
Name:	d3gj4gpak7tb8.cloudfront.net
Address: 99.84.160.72
Name:	d3gj4gpak7tb8.cloudfront.net
Address: 99.84.160.19
Name:	d3gj4gpak7tb8.cloudfront.net
Address: 99.84.160.119
Name:	d3gj4gpak7tb8.cloudfront.net
Address: 99.84.160.13