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

Non-authoritative answer:
stage.sendgrid.com	canonical name = d329vrjbd7qc7j.cloudfront.net.
Name:	d329vrjbd7qc7j.cloudfront.net
Address: 3.161.213.53
Name:	d329vrjbd7qc7j.cloudfront.net
Address: 3.161.213.33
Name:	d329vrjbd7qc7j.cloudfront.net
Address: 3.161.213.122
Name:	d329vrjbd7qc7j.cloudfront.net
Address: 3.161.213.83