Unrecognized hostname
Wrong door.
The server is running, but the hostname used in this request does not match any published application. This usually means the subdomain is not configured, misspelled, or no longer routed.
Requested host
unknown
What happened
Nginx received your request, but no proxy host matched the Host header.
What to check
DNS record, Cloudflare Tunnel route, and Nginx proxy host entry.
Status
This is a catch-all page for unknown domains hitting the reverse proxy.