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Privacy Policy

Last updated: March 2026

Netok is a desktop application for network diagnostics, DNS management, and VPN connectivity. This document describes what data the application accesses, what network requests it makes, and how that information is handled.

Core Principle

Netok does not collect analytics, telemetry, or usage data. There are no tracking pixels, no crash reporting services, and no data shared with the developer or any third party for marketing or profiling purposes.

All diagnostic data stays on your device.

Network Requests

Netok makes network requests as part of its core functionality. Below is a complete list, grouped by trigger type.

Automatic (on each diagnostics run)

These requests are made every time you run a network diagnostic check:

Service Endpoint Purpose
DNS resolution test one.one.one.one (Cloudflare), dns.google (fallback) Verify that DNS resolution works
HTTP connectivity test https://www.cloudflare.com/cdn-cgi/trace, https://example.com (fallback) Verify internet access over HTTP
IP geolocation https://ipinfo.io/json Display your public IP, ISP name, city, and country
Reverse DNS Local network IPs via system DNS Identify device names on your local network
mDNS discovery Local network (UDP port 5353) Discover devices on your local network

Data handling: All results are stored in memory only and discarded when the application is closed. Nothing is written to disk or sent elsewhere.

Automatic (on application startup)

Service Endpoint Purpose
Update check https://github.com/korenyako/netok/releases/latest/download/latest.json Check if a newer version is available

Data handling: Only the version number is compared. No device information is sent. If an update is available, a notification is shown — the user decides whether to install it.

User-triggered only

These requests are made only when you explicitly initiate the action:

Service Endpoint Purpose
Speed test M-Lab NDT7 servers (locate.measurementlab.net, wss://ndt-*.measurementlab.net) Measure download and upload speed
VPN connection User-provided server address via sing-box Establish VPN tunnel
VPN server location https://ipinfo.io/{server-ip}/json Display country and city of a VPN server
DNS provider change System DNS settings (local) Apply selected DNS servers to your network adapter

DNS servers (when DNS protection is active)

When you choose a DNS provider in the app, your DNS queries are sent to that provider's servers. The app supports Cloudflare, Google, AdGuard, Quad9, OpenDNS, DNS4EU, and custom servers. Netok does not proxy or inspect DNS traffic — it configures your system to use the selected DNS servers directly.

When VPN is active, DNS queries are routed through Cloudflare DNS-over-HTTPS (1.1.1.1) via the VPN tunnel.

Data Storage

Data Storage Persistence
Diagnostic results (IP, ISP, signal, latency) In-memory (RAM) Cleared on app close
VPN server configurations Local app storage (WebView) Persists between sessions
VPN server location (country, city) Local app storage (WebView) Persists between sessions
Application settings (language, theme) Local app storage (WebView) Persists between sessions

Netok does not write log files, does not store network traffic, and does not maintain history of diagnostic results.

Third-Party Services

Netok relies on the following external services. Each has its own privacy policy:

Service Used for Privacy policy
ipinfo.io IP geolocation and ISP lookup ipinfo.io/privacy
Measurement Lab (M-Lab) Speed testing (NDT7) measurementlab.net/privacy
Cloudflare HTTP connectivity test, DNS cloudflare.com/privacypolicy
GitHub Application update checks docs.github.com/privacy

What Netok Does NOT Do

  • Does not collect or transmit analytics or telemetry
  • Does not track usage patterns or behavior
  • Does not share data with advertisers or data brokers
  • Does not store browsing history or network traffic content
  • Does not require an account or registration
  • Does not access files outside its own installation directory

Changes to This Policy

This policy may be updated when new features are added. Changes will be documented in the project's commit history. The "Last updated" date at the top reflects the most recent revision.

Contact

If you have questions about this privacy policy, please open an issue on GitHub.