Tool
Leak test
Leak Test Tool (DNS • IPv6 • WebRTC)
Run a fast, privacy-friendly check to confirm your VPN is not leaking DNS, IPv6, or WebRTC details — then follow the recommended fixes.
SmartAdvisorOnline — clear VPN & cybersecurity guides for 2026
SmartAdvisorOnline is a practical library about VPNs, online privacy and cybersecurity fundamentals. No fluff. We focus on what actually changes outcomes: safe defaults, leak tests, protocol choices, and common failure points. (Real talk: most “VPN problems” are just one bad setting away from being fixed.)
Quick start: If you want a reliable VPN setup fast, open Best VPN 2025 and follow the 3-step checklist. Then use VPN Setup Guide to lock in kill switch + leak protection.
New: Leak Test Tool (fast, privacy-friendly)
Before you trust any VPN setup, verify it. Our Leak Test Tool checks common leak paths (DNS, IPv6 and WebRTC) and shows what to change if something is exposed.
| Check | What it means | Typical fix |
|---|---|---|
| DNS leak | Your DNS requests reveal your real resolver or ISP, even when the tunnel is “connected”. | Enable DNS leak protection, use the VPN’s DNS, and disable OS-level “smart DNS”. |
| IPv6 leak | IPv6 traffic bypasses the VPN and exposes your native IPv6 address to websites. | Turn on IPv6 handling in the VPN app or disable IPv6 on the device/router. |
| WebRTC leak | Browsers can reveal local/private IPs via WebRTC, especially during calls. | Use browser WebRTC leak protection or disable WebRTC where appropriate. |
Explore by goal
Start Here (Core Basics)
Understand what a VPN does, what it doesn’t, and the settings that matter.
Streaming & Region Access
What works, what gets blocked, and how to troubleshoot speed/servers.
Setup & Devices
Device guides that reduce leaks and random disconnects.
Leaks, Speed & Fixes
Diagnose DNS/WebRTC leaks, reduce latency, and fix “not connecting”.
Featured guides
Pick
2026
Best VPN 2025 (practical picks)
Fast shortlist + the “don’t screw this up” checklist (protocol, kill switch, leak test).
Comparison
Privacy
Free vs Paid VPN
What you “pay” with when the app is free: logging, throttling, data caps, and risk patterns.
Protocols
Speed
VPN Protocols (OpenVPN vs WireGuard vs IKEv2)
Choose the right protocol for stability, speed, battery usage, and censorship resistance.
Security
Must-have
VPN Kill Switch: how it really protects you
What a kill switch blocks, where it fails, and how to test it properly.
Comparison
Tools
VPN vs Proxy
When a proxy is enough — and when it’s the wrong tool (especially for privacy).
Privacy
Advanced
VPN vs Tor
Different threat models: anonymity vs convenience, and what to combine (carefully).
| Goal | Best default settings | What to read next |
|---|---|---|
| Everyday safety | WireGuard-family protocol, kill switch ON, DNS leak protection ON | VPN Setup Guide + Kill Switch |
| Streaming | Nearest fast server, stable region pool, avoid overloaded endpoints | Speed Test + VPN for Netflix |
| Privacy from ISP | Strong no-logs policy, audited provider, leak tests, privacy DNS | VPN Without Logs + VPN & Privacy Laws |
Watch (60 seconds): VPN basics in plain English
If you prefer video first, this is our own quick explainer. Click to load the video (privacy-friendly embed).
Fallback: Open on YouTube
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