First of all, I'm glad you chose to run nostr-relay-nestjs!

Since you've confirmed that the /metrics endpoint is accessible, I believe you've successfully got it up and running, and you're able to access it in some way. Therefore, your relay address would be ws(s)://:

Nostr relay is a WebSocket-based service, so the protocol used is ws(s):// rather than http(s)://

If you're unable to establish a WebSocket connection but can make HTTP requests, I suspect your NGINX configuration might be incorrect. Here's a simple NGINX configuration for a WebSocket service:

```

server {

server_name xxxxx;

location / {

proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

proxy_set_header Host $host;