When setting up (that's immediately when user enables it in settings) Opera VPN sends few API requests to https://api.surfeasy.com to obtain credentials and proxy IPs, see below, also see The Oprah Proxy.
The browser then talks to a proxy
de0.opera-proxy.net (when VPN location is set to Germany), it's IP address can only be resolved from within Opera when VPN is on, it's
18.104.22.168 (or similar, see below). It's an HTTP/S proxy which requires auth.
When loading a page with Opera VPN enabled, the browser sends a lot of requests to
Proxy-Authorization request header.
Proxy-Authorization header decoded:
device_password come from the
POST /v2/register_device API call, please note that this decoded header is from another Opera installation and thus contains