shell:$ nslookup -timeout=2 -retry=1 'knoxservices.secb2b.com'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
knoxservices.secb2b.com	canonical name = d2k9k5ewvdxj1a.cloudfront.net.
Name:	d2k9k5ewvdxj1a.cloudfront.net
Address: 3.170.51.13
Name:	d2k9k5ewvdxj1a.cloudfront.net
Address: 3.170.51.31
Name:	d2k9k5ewvdxj1a.cloudfront.net
Address: 3.170.51.122
Name:	d2k9k5ewvdxj1a.cloudfront.net
Address: 3.170.51.117