which vpn protocol is best

With the increasing need for privacy and security online, Virtual Private Networks (VPNs) have become an essential tool for internet users worldwide. VPNs add a layer of protection by creating a secure and encrypted connection between your device and the internet. One crucial aspect of a VPN’s functionality lies in the protocol it employs, determining the level of security and speed it offers.

There are numerous VPN protocols available, including OpenVPN, PPTP, L2TP/IPSec, IKEv2/IPSec, WireGuard, SSTP, and proprietary protocols developed by individual VPN service providers. The “best” protocol for your needs may vary, depending on factors such as your device, network conditions, and specific use cases. Understanding the strengths and weaknesses of each protocol will help you make an informed decision and ensure that you have the optimal VPN experience.

Key Takeaways

  • VPN protocol choice influences security and performance
  • OpenVPN, WireGuard, and IKEv2/IPSec are popular, secure protocols
  • Factors such as device compatibility and network conditions affect protocol selection


OpenVPN is a popular and widely-used VPN protocol known for its strong security and encryption capabilities. Developed as an open-source project, OpenVPN has become the go-to choice for many VPN providers and users. In this section, we’ll explore the key features of OpenVPN, focusing on security and encryption.


OpenVPN uses a robust security model that includes several encryption and authentication mechanisms. Built on top of OpenSSL, it supports a wide range of encryption algorithms such as AES (Advanced Encryption Standard) and ChaCha20. These encryption algorithms ensure that the data transmitted between the VPN client and server is secure and protected against eavesdropping.

Additionally, OpenVPN offers the benefit of configurable and custom security settings. VPN providers can tailor the security settings to their specific requirements, such as data authentication mechanisms and cipher choice.


A modern office with a laptop on the deskThe encryption strengths of OpenVPN can be attributed to its support for several AES cipher suites, including AES-128, AES-192, and AES-256. AES encryption is widely recognized as a reliable encryption standard, providing an appropriate level of security while balancing performance. OpenVPN also supports the newer ChaCha20 cipher, which excels in performance on devices with limited processing power, like mobile devices.

Using AES encryption together with a solid data authentication system (e.g., HMAC (Hash-based Message Authentication Code) with SHA (Secure Hash Algorithm) hashes), OpenVPN ensures both the integrity and confidentiality of data transmitted over VPN connections. This strong security and encryption capability has made OpenVPN a favored choice among VPN providers and users seeking a high level of online privacy and network security.


The Point-to-Point Tunneling Protocol (PPTP) is an older VPN protocol that was developed with support from Microsoft. It has been available on all versions of Windows and most other operating systems, making it one of the most widely used VPN protocols.


  1. Speed: PPTP is known for its fast speed compared to other VPN protocols. This makes it a popular choice for users who prioritize performance.
  2. Easy Setup: PPTP can be easily configured even by users with little technical knowledge. Its compatibility with default Windows settings adds to its ease of use.
  3. Availability: PPTP is supported on a wide range of operating systems and devices, ensuring accessibility for various users.


  1. Security Vulnerabilities: Being an older protocol, PPTP has several known security vulnerabilities. It relies on the MPPE encryption method, which has been proven to be less secure than modern encryption standards.
  2. Microsoft-based Authentication: PPTP utilizes the MS-CHAP v2 authentication method, which has its own set of known vulnerabilities. This makes PPTP less desirable for users who prioritize security.

To sum up, PPTP offers speed and ease of use but falls short in terms of security. Users should consider these factors while choosing a VPN protocol that aligns with their needs.


Layer 2 Tunneling Protocol (L2TP) combined with Internet Protocol Security (IPsec) is a popular VPN protocol. It is known for its reliable encryption and solid tunneling capabilities. L2TP/IPsec merges the functions of L2TP and IPsec protocols to offer a robust solution for users looking to secure their internet traffic.


L2TP/IPsec utilizes AES encryption, which provides strong security and decent performance. It uses the UDP port 500 for establishing connections, which can be fast and stable. However, L2TP/IPsec also presents some potential performance drawbacks:

  • Double encapsulation: Traffic is encrypted twice, which can lead to lower speeds.
  • Vulnerability to firewalls: Some firewalls may block L2TP/IPsec traffic as it uses fixed ports.

Despite these potential drawbacks, L2TP/IPsec can still provide acceptable performance for most users, especially when compared to older protocols like PPTP.


L2TP/IPsec boasts a wide range of compatibility, as it is natively supported by most modern operating systems and devices. This includes popular platforms such as Windows, macOS, iOS, and Android.

Due to its broad compatibility, L2TP/IPsec is simple to set up and use across various devices, making it an attractive choice for those looking for an easy-to-implement VPN solution. However, you may also want to consider IKEv2/IPsec as an alternative VPN protocol that offers even more advanced security features and faster performance.

Keep in mind that L2TP/IPsec’s usage of fixed ports means it may be more easily blocked by some networks and NAT firewalls. This can be a problem for users in restrictive network environments or for those who frequently access VPNs through public Wi-Fi hotspots.


IKEv2/IPSec is a popular VPN protocol that combines the strengths of the Internet Key Exchange version 2 (IKEv2) and Internet Protocol Security (IPsec) protocols, providing a secure and efficient tunneling solution. Developed by Cisco and Microsoft, this protocol excels in terms of speed, security, and mobile app performance.

One of the main advantages of IKEv2/IPSec is its excellent performance on mobile apps, as it supports fast and efficient switching between networks, maintaining a secured VPN connection even as your device transitions between Wi-Fi and mobile data networks. This makes it ideal for users who are often on the move and need to stay connected securely.


WireGuard is a relatively new VPN protocol that has been gaining popularity due to its focus on simplicity, performance, and strong security. Designed as an alternative to older protocols like OpenVPN and L2TP, WireGuard aims to provide a more efficient and secure VPN solution. In this section, we will discuss the speed and encryption capabilities of WireGuard.


One of the major advantages of WireGuard is its performance. The protocol is designed to be lightweight and fast, making it an ideal choice for users who prioritize speed in their VPN connections. WireGuard achieves this through its streamlined codebase and minimalistic approach to tunneling, which reduces latency and improves throughput.

Various VPN providers have adopted WireGuard due to its impressive speed, which allows for faster streaming, smoother gaming experiences, and improved overall performance compared to other VPN protocols.


WireGuard has been built with security and encryption in mind. It utilizes modern cryptographic algorithms for both encryption and authentication, including ChaCha20 for symmetric encryption, Poly1305 for message authentication, and Curve25519 for key exchange.

While other VPN protocols such as OpenVPN and L2TP can use a variety of encryption algorithms like AES and Blowfish, WireGuard opts for a simpler, more efficient approach. This not only ensures that the protocol remains lightweight and fast, but also guarantees a consistently high level of security across all connections.


SSTP (Secure Socket Tunneling Protocol) is a VPN protocol developed by Microsoft, providing a high level of security and encryption. Primarily used by Windows users, SSTP is also supported on Linux, Android, and many routers. This protocol operates over TCP and uses SSL/TLS encryption to create a secure connection.

Bypassing Firewalls

SSTP’s ability to bypass firewalls is one of its key advantages. By utilizing TCP port 443, the same port used for HTTPS traffic, SSTP is able to effectively bypass most firewalls. This makes it an excellent choice for users in countries or situations where strict censorship or VPN blocking is in place.

When it comes to speed, SSTP may not be the fastest VPN protocol available, but its security features and ability to bypass firewalls make it a strong contender in the VPN market. Its compatibility with various platforms, including Windows, Linux, and Android, adds to its overall usability. However, as a Microsoft-developed protocol, it may not be the top choice for users who prioritize open-source solutions or have concerns about Microsoft’s control over the protocol.

Factors to Consider for the Best VPN Protocol

When selecting the best VPN protocol, it’s essential to consider a variety of factors. In this section, we will explore Device Compatibility, Speed and Performance, and how they impact your choice of VPN protocol.

Device Compatibility

Choosing a VPN protocol that is compatible with your device is crucial for ensuring a smooth and hassle-free user experience. In general, OpenVPN is considered as the most adaptable protocol, as it supports a wide range of devices, including Windows, macOS, Android, and iOS. Additionally, it offers strong security features and can bypass network restrictions.

On the other hand, other protocols such as L2TP/IPsec may only work well with some devices. For example, Windows users might find SSTP as an ideal alternative to OpenVPN, due to its integration with the operating system.

Speed and Performance

A computer screen displaying a comparison table of the best VPN protocolsThe speed and performance of a VPN protocol can significantly impact your browsing experience. In general, faster protocols provide better response times, reduced buffering, and smoother streaming experiences.

However, there can be some trade-offs between speed and security. For example, WireGuard is a relatively new VPN protocol that is known for its high-speed performance. But, it’s crucial to consider that WireGuard might still be undergoing development and security audits.

On the other hand, OpenVPN is an established protocol, offering a balance between speed and security. You can also configure it to use different levels of encryption, which can affect its performance. For example, a higher level of encryption may provide better security but could result in slower connection speeds.

Final Thoughts on the Best VPN Protocol

When choosing the best VPN protocol, the top contenders are usually OpenVPN and Softether. OpenVPN is an open-source VPN system that utilizes TLS (Transport Layer Security) methodologies for encryption and verification processes. It is often paired with the highly secure AES-256-GCM encryption algorithm, making it a widely recommended option for most situations.

On the other hand, Softether is known for its exceptional speed capabilities, often outpacing both OpenVPN and PPTP when implemented correctly. Despite being designed with performance in mind, Softether doesn’t compromise on security benefits. Similar to OpenVPN, it supports 256-bit encryption and is open-source.

  • Encryption: Both OpenVPN and Softether provide strong encryption, making them secure choices for your VPN needs.
  • Speed: Softether might have an edge over OpenVPN when it comes to speed, especially during gaming or other performance-sensitive activities.
  • Compatibility: While OpenVPN is widely compatible with various platforms, Softether’s compatibility may be more limited.
  • Community support: OpenVPN enjoys a large community of users and developers, offering active support and frequent updates.

Frequently Asked Questions

What is the fastest VPN protocol for streaming?

Lightway is generally considered the fastest VPN protocol for streaming, gaming, and other applications where speed and connection stability are crucial. If Lightway isn’t available to you, OpenVPN or IKEv2 are also good options with reasonable speeds.

Which VPN protocol offers the best security?

OpenVPN is often regarded as the best for privacy and security among the available VPN protocols. It is compatible with most encryption algorithms, stable with fast speeds, and has rare vulnerabilities. OpenVPN offers 256-bit AES encryption with best-in-class security algorithms, providing extensive cloaking capabilities.

Which protocol is recommended for specific platforms like Android and iOS?

For Android and iOS devices, IKEv2 is a popular choice due to its excellent stability and performance on mobile platforms. Additionally, OpenVPN and newer protocols like WireGuard can also be suitable for Android and iOS, offering a balanced mix of speed, security, and compatibility with various apps and devices.

What are the key differences between TCP and UDP in VPN protocols?

TCP (Transmission Control Protocol) and UDP (User Datagram Protocol) are the two main transport protocols used by VPNs. TCP is more stable and reliable, ensuring data packets are sent and received in the correct order. However, it can be slower due to the need for acknowledgments between sender and receiver. On the other hand, UDP is faster because it doesn’t require acknowledgment and can handle packet loss, but it may be less reliable in delivering data packets correctly. OpenVPN can use both TCP and UDP, allowing users to choose based on their needs.

How do newer VPN protocols compare to older ones?

Newer VPN protocols such as WireGuard and Lightway focus on performance, speed, and efficiency, while maintaining strong security. They often require fewer resources, have a simpler codebase, and provide faster connection times compared to older protocols like PPTP and L2TP/IPsec. However, older protocols may still be relevant in some scenarios where compatibility with legacy systems is necessary.

What factors should be considered when choosing a VPN protocol?

When choosing a VPN protocol, consider factors such as your device, OS, specific platform requirements, intended usage (streaming, gaming, or general browsing), and the level of security and privacy you need. It’s essential to balance performance, security, and compatibility to pick a protocol that will meet your needs effectively.

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