shell:$ nslookup -timeout=2 -retry=1 '0.tcp.ngrok.io'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
Name:	0.tcp.ngrok.io
Address: 3.135.250.11
Name:	0.tcp.ngrok.io
Address: 3.137.60.53
Name:	0.tcp.ngrok.io
Address: 18.190.63.84
Name:	0.tcp.ngrok.io
Address: 3.146.103.81
Name:	0.tcp.ngrok.io
Address: 3.12.57.198
Name:	0.tcp.ngrok.io
Address: 3.12.245.36