VPN protocols determine how your device connects to a VPN server and how your data is transmitted. Understanding their differences can help you choose a connection suited to your privacy, security, and performance needs.
Popular options include WireGuard, OpenVPN, and IKEv2. Each makes different trade-offs in encryption, connection speed, compatibility, and reliability across devices and networks.
WireGuard is known for its streamlined design and fast connections, while OpenVPN offers broad compatibility and flexible security settings. IKEv2 is often useful on mobile devices because it can reconnect efficiently when a network changes.
The best choice depends on your device, network conditions, and priorities. Check which protocols your VPN service supports, then compare their security features and performance for activities such as browsing, streaming, or connecting on public Wi-Fi.