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

Non-authoritative answer:
Name:	readpdfaloud.com
Address: 104.21.79.3
Name:	readpdfaloud.com
Address: 172.67.139.57
Name:	readpdfaloud.com
Address: 2606:4700:3031::6815:4f03
Name:	readpdfaloud.com
Address: 2606:4700:3035::ac43:8b39