Full HTTP/3 Protocol Support

NullPrivate now fully supports the HTTP/3 protocol. All existing users will be automatically upgraded to enjoy the performance gains of HTTP/3 without any additional configuration.

Key Update Notes

• iOS users: Can now use HTTP/3 directly via the DoH protocol, enjoying lower network latency
• Android users: Due to system limitations, still use the DoT protocol for now; support will arrive once Google releases a subsequent version
• Performance boost: First-response times are significantly faster compared to HTTP/2, and connections are established more quickly
• Smart fallback: In environments that do not support HTTP/3, the system automatically falls back to HTTP/2 to ensure service stability

Deep Dive into HTTP/3 Technology

HTTP/3, the latest version of the HTTP protocol, is built on Google’s QUIC transport protocol and brings several revolutionary technical advantages:

Core Features

1. QUIC protocol over UDP

   • Dramatically reduces connection-establishment time
   • Improved multiplexing capabilities
   • Smarter packet-loss handling

2. Optimized performance

   • Zero-round-trip-time (0-RTT) handshakes
   • Enhanced congestion control
   • Connection-migration support

3. Enhanced security

   • Integrated TLS 1.3
   • Encrypted handshake process
   • Reduced risk of man-in-the-middle attacks

Connection-Establishment Comparison

Usage Recommendations

• Ensure your client supports the HTTP/3 protocol
• Keep your client up to date
• When network conditions are restricted, the system will automatically fall back to HTTP/2

Important Notes

• In some regions, networks may restrict UDP traffic, affecting HTTP/3 performance
• Performance may vary across different network environments
• The system will automatically select the optimal protocol based on network conditions

References

• HTTP/3 Specification
• QUIC Protocol Deep Dive
• IETF HTTP/3 Standard

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