How to Tell If Your VPN Is Actually Working
The connected indicator only reports a handshake. Four checks — IP, DNS, IPv6 and WebRTC — tell you what the rest of the internet can still see.
Most VPN advice is written by people selling VPNs, which is why the same five features get described as essential regardless of what you are trying to do. These guides take the opposite approach: what a VPN genuinely protects against, what it does not, and which of the settings buried in the app are worth changing. The troubleshooting guides cover the two failures everyone hits — a connection that halves your speed, and one that says connected while sites still refuse to load.
The connected indicator only reports a handshake. Four checks — IP, DNS, IPv6 and WebRTC — tell you what the rest of the internet can still see.
Route some apps through the VPN and leave the rest on your normal connection. Faster and less disruptive, as long as you remember what is not protected.
VPNs are ordinary business tools in most of the world. A small number of countries restrict or ban them, so here is how to find out what applies where you are.
Check your router supports a VPN client before anything else. Then it is a config file, a reboot and a leak test — and a speed test you should not skip.
Phones change networks constantly and aggressively kill background apps. Both break VPN tunnels, and both have specific settings that stop it.
Licensing contracts are country-by-country, so platforms are contractually required to detect VPNs. Here is how they do it and why it keeps breaking.
The tunnel being up says nothing about whether your traffic is using it. Four checks separate a leaking VPN from a site that has simply blocked the server.
Some slowdown is physics and cannot be fixed. The rest is server choice, protocol and MTU, and those three account for nearly every case worth troubleshooting.
A proxy redirects one application's traffic. A VPN redirects the whole device and encrypts it. Which you want depends on the job, not on which sounds stronger.
Running VPN servers costs money, so a free service recovers it somewhere. Here is where, and which of those trade-offs actually matter to you.
Running the VPN on your router covers every device at once, including ones with no VPN app. It also costs speed and makes ordinary problems harder to diagnose.
Dedicated hardware for terminating hundreds of VPN tunnels at once. It is enterprise equipment, and almost nobody reading this needs to buy one.
A router setting from the era of PPTP and L2TP. Modern VPN protocols do not need it, and most routers keep the toggle only for compatibility.
A tunnel is ordinary packets wrapped inside other packets. Understanding that one mechanism explains almost every VPN problem you will ever hit.
A kill switch blocks all internet traffic the moment the VPN tunnel drops. Useful for some tasks, actively annoying for everyday browsing.
A VPN moves the record of your browsing from your internet provider to the VPN company. Here is what that genuinely protects, and what the marketing overstates.