shell:$ nslookup -timeout=2 -retry=1 'community.imperva.co'
Server:		127.0.0.53
Address:	127.0.0.53#53

Non-authoritative answer:
community.imperva.co	canonical name = www.imperva.com.
www.imperva.com	canonical name = jq5o3.x.incapdns.net.
Name:	jq5o3.x.incapdns.net
Address: 45.60.6.60