shell:$ nslookup -timeout=2 -retry=1 'documents.opto22.com'
Server:		127.0.0.53
Address:	127.0.0.53#53

Non-authoritative answer:
documents.opto22.com	canonical name = d3kkd9hioz0fd1.cloudfront.net.
Name:	d3kkd9hioz0fd1.cloudfront.net
Address: 3.161.213.30
Name:	d3kkd9hioz0fd1.cloudfront.net
Address: 3.161.213.91
Name:	d3kkd9hioz0fd1.cloudfront.net
Address: 3.161.213.83
Name:	d3kkd9hioz0fd1.cloudfront.net
Address: 3.161.213.73