Is OpenVPN actually safe?
Yes — the protocol is one of the most reviewed pieces of network software in existence. Whether a particular free server is safe is a different question, and this page answers both honestly.
What OpenVPN is
OpenVPN is an open-source protocol that builds an encrypted tunnel between your device and a server. It has been public since 2001, audited repeatedly, and it leans on OpenSSL for its cryptography rather than inventing its own. Nothing about a config file we hand you changes the protocol — a .ovpn file is an address, a certificate and a set of options.
Two channels, two jobs
A connection has a control channel, a TLS session used to agree on keys and check that the server is the one your certificate expects, and a data channel, which carries your traffic under those keys. The health check we run every five minutes speaks only the first packet of the control channel — enough to know a real OpenVPN server is listening, and nothing else.
tls-auth vs tls-crypt
Both wrap the control channel in an extra shared key, so a random scanner cannot even start a handshake. tls-auth signs those packets; tls-crypt encrypts them outright, which is stronger — and it also puts them out of our reach.
That has a consequence we would rather state than hide. Over TCP we fall back to checking that the port still accepts a connection, which is real but weaker evidence. Over UDP there is no fallback at all, so we drop those configs instead of publishing a score nobody measured.
What the operator can and cannot see
This is the part that matters, and it has nothing to do with the protocol. A VPN moves your trust from your internet provider to whoever runs the server. With a free volunteer server, that is a stranger.
- Which sites and IPs you connect to
- When you connect, and for how long
- Your real IP address
- Anything you send over plain HTTP
- The contents of an HTTPS page
- Your passwords on any HTTPS site
- Messages inside an end-to-end encrypted app
- Anything after you disconnect
In other words: the tunnel protects the last mile from a café Wi-Fi, and the list of destinations becomes visible to the server owner instead of your ISP. That is a genuine trade, not a magic cloak.
What we can and cannot prove
We can prove a server answered a real OpenVPN handshake minutes ago, how fast it answered, and how often it has answered over the last day and the last week. A small number of servers encrypt their control channel end to end; for those we can only prove the port accepted a connection, and we say so on the server's own page. Every number on this site comes from one of those two measurements.
We cannot prove who runs it, what they log, or whether they are honest. Nobody can, for a free volunteer server — including the sites that list them without checking anything at all. If a server here misbehaves, tell us and it gets blocked permanently; that is a reaction, not a guarantee.
Practical rules
- Use it to reach something blocked where you are, or to get off an untrusted network. That is what it is good at.
- Keep HTTPS on everywhere. It is the layer the operator cannot read, and it is doing most of the work.
- Expect banks and payment sites to lock you out — a login from an unfamiliar country trips their fraud checks. That is not the tunnel failing; it is the exit IP doing exactly what you asked it to.
- Treat it as geo-unblocking, not anonymity. If you need anonymity this is the wrong tool, and no free server will give it to you.