Hi, I asked Jolla support first and they told me to put it here:
If an app is started and it needs an internet connection it will check for it by establishing a connection to an external server. When this is done in native Sailfish OS apps / SailfishOS itself, this check is send to for instance “ipv4.jolla.com/return_204”. (that is fine)
If we are talking about an Android app in “Alien Dalvik”, the request seems to be send to “connectivitycheck(-dot-)gstatic(-dot-)com(-slash-)generate_204” or “google(-dot-)com(-slash-)gen_204”.
(sorry… new users can not put more than 2 links into a post so I had to improvise)
Attached to this you will find an image showing the different connections occuring when using an “Alien Dalvik” based app.
If I am not wrong (I might be… this is only something I’ve been told), the /e/-project changed this behaviour and I would like to know if there is a possibility to not do the check to a Google server when using Alien Dalvik but for instance to the Jolla-Server too.
It is not really bad, but it would be great if that could be considered in future releases so Google does not always get the information that your IP connected to something.