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

Non-authoritative answer:
www.sendgrid.com	canonical name = sendgrid.com.
Name:	sendgrid.com
Address: 18.221.161.88
Name:	sendgrid.com
Address: 3.212.195.190
Name:	sendgrid.com
Address: 54.156.3.86
Name:	sendgrid.com
Address: 3.19.99.151
Name:	sendgrid.com
Address: 3.132.43.163