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

Non-authoritative answer:
web.webex.com	canonical name = d3l8kopw1d3uiv.cloudfront.net.
Name:	d3l8kopw1d3uiv.cloudfront.net
Address: 18.238.25.63
Name:	d3l8kopw1d3uiv.cloudfront.net
Address: 18.238.25.33
Name:	d3l8kopw1d3uiv.cloudfront.net
Address: 18.238.25.103
Name:	d3l8kopw1d3uiv.cloudfront.net
Address: 18.238.25.52
Name:	d3l8kopw1d3uiv.cloudfront.net
Address: 2600:9000:25f5:7600:19:a33:91c0:93a1
Name:	d3l8kopw1d3uiv.cloudfront.net
Address: 2600:9000:25f5:7e00:19:a33:91c0:93a1
Name:	d3l8kopw1d3uiv.cloudfront.net
Address: 2600:9000:25f5:bc00:19:a33:91c0:93a1
Name:	d3l8kopw1d3uiv.cloudfront.net
Address: 2600:9000:25f5:4e00:19:a33:91c0:93a1
Name:	d3l8kopw1d3uiv.cloudfront.net
Address: 2600:9000:25f5:b400:19:a33:91c0:93a1
Name:	d3l8kopw1d3uiv.cloudfront.net
Address: 2600:9000:25f5:2000:19:a33:91c0:93a1
Name:	d3l8kopw1d3uiv.cloudfront.net
Address: 2600:9000:25f5:5600:19:a33:91c0:93a1
Name:	d3l8kopw1d3uiv.cloudfront.net
Address: 2600:9000:25f5:2e00:19:a33:91c0:93a1