shell:$ nslookup -timeout=2 -retry=1 'www.ptc.org'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
www.ptc.org	canonical name = wp.wpenginepowered.com.
Name:	wp.wpenginepowered.com
Address: 141.193.213.10
Name:	wp.wpenginepowered.com
Address: 141.193.213.11