shell:$ nslookup -timeout=2 -retry=1 'check.analytics.rlcdn.com'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
Name:	check.analytics.rlcdn.com
Address: 3.170.51.51
Name:	check.analytics.rlcdn.com
Address: 3.170.51.91
Name:	check.analytics.rlcdn.com
Address: 3.170.51.26
Name:	check.analytics.rlcdn.com
Address: 3.170.51.116
Name:	check.analytics.rlcdn.com
Address: 2600:9000:2873:1e00:16:708:31c0:93a1
Name:	check.analytics.rlcdn.com
Address: 2600:9000:2873:a000:16:708:31c0:93a1
Name:	check.analytics.rlcdn.com
Address: 2600:9000:2873:2800:16:708:31c0:93a1
Name:	check.analytics.rlcdn.com
Address: 2600:9000:2873:7a00:16:708:31c0:93a1
Name:	check.analytics.rlcdn.com
Address: 2600:9000:2873:7200:16:708:31c0:93a1
Name:	check.analytics.rlcdn.com
Address: 2600:9000:2873:1800:16:708:31c0:93a1
Name:	check.analytics.rlcdn.com
Address: 2600:9000:2873:8e00:16:708:31c0:93a1
Name:	check.analytics.rlcdn.com
Address: 2600:9000:2873:ce00:16:708:31c0:93a1