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VLESS protocol — a fast and secure VPN protocol

A modern protocol that protects your internet connection with minimal speed loss and maximum resistance to blocking.

What is VLESS?

VLESS is a modern data transfer protocol designed to create secure VPN connections. It delivers high speed and reliability with minimal overhead.

Technologies

  • TCP / TLS / WebSocket
  • Minimalist architecture
  • Modern encryption

Benefits

  • High connection speed
  • Resistance to blocking
  • Stable connection

Why VPNs use VLESS

VLESS has become a go-to standard for modern VPN services thanks to its unique combination of security, speed, and reliability.

Security VLESS

  • Modern traffic encryption
  • Disguised as regular HTTPS
  • Complete data privacy

Minimal overhead

  • No unnecessary headers
  • High data transfer speed
  • Efficient bandwidth usage

Works well in complex networks

  • Resistance to blocking
  • Stable connection
  • Works in any conditions

How VLESS works

A simple diagram of how the VLESS protocol works

Client Your device
VLESS key Configuration
Encryption TLS tunnel
Server VPN server

All traffic between your device and the server is encrypted and disguised as regular HTTPS traffic

VLESS keys — what are they and what are they for

What is a VLESS key

A VLESS key is a configuration string that contains all the necessary data to connect to a VPN server:

  • Server address
  • Connection port
  • Unique identifier (UUID)
  • Encryption parameters

VLESS key vs application — what's the difference

❌ The application ≠ VPN

The application itself does not provide VPN access

✓ Application + Key = VPN

The key activates the VPN inside the application

How to set up VLESS

Setup takes just 2-3 minutes on any device

Android
iPhone / iPad
Windows
macOS

To set up, you will need: a client application and a VLESS key

Get a VLESS key

Popular VLESS clients

Applications that support the VLESS protocol

v2Ray / v2RayNG

Popular client for Android

v2RayTune

Optimized version of v2Ray

Happ

Simple client for beginners

Shadowrocket

Premium client for iOS

Clash

Advanced multi-platform client

Nekoray

Client for Windows and Linux

All clients are free and available in the official app stores

Why VLESS might not work

Common problems and their solutions

Incorrect key configuration

Check that the key was copied correctly into the application

Provider blocking

Try switching to a different server or connection port

Outdated application

Update the client to the latest version

Unstable internet connection

Check your basic network connectivity

Most issues are resolved in just a few minutes. If you still can’t get it working — contact support.

VLESS or other protocols

Brief comparison with popular alternatives

VLESS vs VMess

VLESS is a more modern and lightweight protocol. VMess requires time synchronization and has higher overhead costs.

→ VLESS is faster and easier to configure

VLESS vs Shadowsocks

Shadowsocks is simpler, but easier to detect. VLESS is better at masquerading as normal HTTPS traffic.

→ VLESS is more reliable for bypassing blocks

VLESS vs Trojan

Both protocols are similar in how they work. VLESS is more flexible in transport configuration.

→ Both are good, VLESS is more versatile.

Where to buy a VLESS key

Get a personal VLESS key from VzletVPN with a quality guarantee

Instant delivery after payment

7 days free trial

Supports all devices

High connection speed

24/7 technical support

No logs or ads

Buy VLESS key

Frequently asked questions

Start using VLESS

Modern protocol, high speed, reliable protection. Get a VLESS key and connect in 2 minutes.

Start using VLESS

No ads • No logs • High speed • 7 days free