TCP vs UDP: Which protocol is better for you

TCP vs UDP: Which one to choose

VPN connections can usually use either TCP or UDP transport protocols. AoxVPN uses UDP by default, but in some scenarios TCP is more suitable. Today I’ll teach you how to choose.

Features of UDP

• Fast connection speed, no handshake required
• Low latency, suitable for real-time applications
• No guarantee of delivery, packet loss may occur

Features of TCP

• Reliable transmission to ensure data integrity
• There is a handshake process, and the connection establishment is slightly slow
• If packet loss occurs, it will be retransmitted, which may cause lags

Select suggestions

• Games, video calls → UDP (low latency)
• Download large files, browse the web → TCP or UDP
• Network instability → TCP (retransmission mechanism ensures integrity)
• Company firewall is strict → TCP (disguised as HTTPS traffic)

Niu VPN will automatically select the optimal protocol based on the application, and manual switching is not required in most cases. Go to the official website for details.