de0u one useful software for this might be inviZible. You can set up a profile specifically for this testing . it should be ran in VPN mode, and then you will be able to see all the DNS requests by specific apps, should be interesting. I think i may try this, however, I have a P8 with GOS. Also, just in case there is traffic that is not encapsulated through the VPN, It might be wise also to run another test routing network traffic through a computer and monitoring everything on WireShark or even simpler program that logs all DNS requests.