IP address detected through Nginx

216.73.216.141

This is the client IP Flask trusts after processing the forwarding headers from Nginx Proxy Manager.

Proxy details

Trusted client IP
216.73.216.141
Direct connection to Flask
172.18.0.2
X-Real-IP
216.73.216.141
X-Forwarded-For
216.73.216.141
CF-Connecting-IP
Not provided
Forwarded
Not provided
Protocol
https
Host
myip.someless.top

For a single public IPv4 address in an NPM Access List, add 216.73.216.141/32.