shell:$ nslookup -timeout=2 -retry=1 'client.relay.crisp.chat'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
Name:	client.relay.crisp.chat
Address: 159.203.123.152
Name:	client.relay.crisp.chat
Address: 104.248.10.131
Name:	client.relay.crisp.chat
Address: 2604:a880:800:c1::5d:3001
Name:	client.relay.crisp.chat
Address: 2604:a880:800:a1::b7a:2001