shell:$ nslookup -timeout=2 -retry=1 'sjrtp3-cdn.marketo.com'
Server:		127.0.0.53
Address:	127.0.0.53#53

Non-authoritative answer:
sjrtp3-cdn.marketo.com	canonical name = wildcard.marketo.com.edgekey.net.
wildcard.marketo.com.edgekey.net	canonical name = e8999.b.akamaiedge.net.
Name:	e8999.b.akamaiedge.net
Address: 184.25.65.221