WireGuard vs stealth: how to choose a VPN protocol and server
SecureFox offers two very different protocols and a server list you can sort by ping and load. Here is when to pick WireGuard, when to pick VLESS + REALITY, and how to read ping and load so you choose the right server.
Most of the time you can tap connect and let SecureFox decide. But when a connection feels slow, a network blocks you, or you care about a specific kind of protection, two choices make the biggest difference: which protocol and which server.
The two protocols
WireGuard: speed on open networks
WireGuard is a modern, lean protocol with a very small codebase and a fast handshake.
- Best for: home Wi-Fi, mobile data and other networks that don't block VPNs.
- Strengths: low latency, low CPU use and good battery life, which makes it ideal for staying connected all day on your phone.
- Limits: it runs over UDP and its handshake is easy to recognise, so restrictive networks often block it. Its standard key exchange is also classical, not post-quantum.
VLESS + REALITY: stealth and post-quantum
VLESS over REALITY runs on TCP port 443 and makes your connection look like an ordinary HTTPS visit to a real website.
- Best for: hotels, offices, campuses, airports and countries that block or throttle VPNs.
- Strengths: no VPN fingerprint for firewalls to detect, and on SecureFox servers the key exchange is hybrid post-quantum (ML-KEM-768 + X25519).
- Limits: slightly more overhead than WireGuard, which you may notice on very slow connections.
Quick decision guide
| Situation | Choose |
|---|---|
| Home or mobile data, nothing blocked | WireGuard |
| Gaming or calls where latency matters most | WireGuard |
| Public Wi-Fi, office or campus network | VLESS |
| Country or network that blocks VPNs | VLESS |
| Confidential data that must stay private for years | VLESS (post-quantum) |
| Not sure | Auto |
You can change this in Settings → Protocol. If a server doesn't offer the protocol you picked, the app tells you and you can choose another server or protocol.
Choosing a server: ping, load and location
The server list shows two numbers for each location. Together they tell you more than distance alone.
- Ping is the round-trip time between you and the server, in milliseconds. Lower is better: under 50 ms feels instant, 50 to 150 ms is fine for browsing and streaming, and above that you'll notice delays in calls and games.
- Load is how busy the server is right now. A nearby server at high load can be slower than a slightly more distant one that is quiet.
Tap the sort button to order the list by Lowest Ping or Lowest Load:
- For general use, sort by lowest ping and pick the first server that isn't heavily loaded.
- For big downloads or streaming, sort by lowest load: available capacity matters more than a few milliseconds.
- For a specific country (for example to use services from home while travelling), pick that country first, then the server with the lowest load there.
- If you don't want to think about it, use auto-select. It weighs latency and load for you.
When a connection feels slow
- Try a different server in the same country before changing countries.
- Switch protocol: WireGuard if your network allows it, VLESS if you suspect throttling.
- Remember that the VPN can only be as fast as the network underneath. Test without the VPN to see your baseline.
Next step: open the server list, sort by Lowest Load, and compare two or three servers. The difference is often bigger than you'd expect.