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

Non-authoritative answer:
ocsp.digicert.com	canonical name = ocsp.edge.digicert.com.
ocsp.edge.digicert.com	canonical name = cac-ocsp.digicert.com.edgekey.net.
cac-ocsp.digicert.com.edgekey.net	canonical name = e3913.cd.akamaiedge.net.
Name:	e3913.cd.akamaiedge.net
Address: 23.60.131.209