shell:$ nslookup -timeout=2 -retry=1 'x1.i.lencr.org'
Server:		127.0.0.53
Address:	127.0.0.53#53

Non-authoritative answer:
x1.i.lencr.org	canonical name = crl.root-x1.letsencrypt.org.edgekey.net.
crl.root-x1.letsencrypt.org.edgekey.net	canonical name = e8652.dscx.akamaiedge.net.
Name:	e8652.dscx.akamaiedge.net
Address: 23.39.213.128
Name:	e8652.dscx.akamaiedge.net
Address: 2600:140a:5000:b84::21cc
Name:	e8652.dscx.akamaiedge.net
Address: 2600:140a:5000:b81::21cc