Android application for detecting VPN and proxy on the device. Implements the methodology used by Roskomnadzor to identify means of circumventing blocks.

Minimum Android version: 8.0 (API 26).

Architecture

Six independent verification modules run in parallel. The final verdict is calculated by the VerdictEngine.

The IpComparisonChecker result is saved and shown in the UI as a diagnostic block, but it does not participate in the VerdictEngine in the current version.

VpnCheckRunner
├── GeoIpC