Cannot access site, but others can

I’m having trouble accessing a simple nginx server that I’ve set up on my home box. I can access it from the ip address, but not the subdomain it’s set to (my registrar is Godaddy). I’ve flushed my DNS on my desktop, my server (the machine it’s hosted from), and my phone on a different network can’t access the subdomain.

But I have a friend that can load the page just fine through the subdomain. What is going on?

What’s the URL?