shell:$ nslookup -timeout=2 -retry=1 'lk.linkedin.com'
Server:		127.0.0.53
Address:	127.0.0.53#53

Non-authoritative answer:
lk.linkedin.com	canonical name = cctld.linkedin.com.
cctld.linkedin.com	canonical name = cctld.es.lnkdns.net.
cctld.es.lnkdns.net	canonical name = www.linkedin.com.cdn.cloudflare.net.
Name:	www.linkedin.com.cdn.cloudflare.net
Address: 104.18.41.41
Name:	www.linkedin.com.cdn.cloudflare.net
Address: 172.64.146.215
Name:	www.linkedin.com.cdn.cloudflare.net
Address: 2a06:98c1:3109::6812:2929
Name:	www.linkedin.com.cdn.cloudflare.net
Address: 2a06:98c1:310b::ac40:92d7