QUIC
Quick UDP Internet Connections - Revolutionary Transport Protocol
Speed
Accelerated connection setup and data transmission
Security
Built-in TLS 1.3 encryption
Mobility
Network switching without reconnection
QUIC Adoption Statistics
QUIC Adoption Trends
HTTP/3 Protocol Growth Statistics
Data Source: W3Techs
Last Updated: November 2025
Year-over-Year Growth: +15.2%
Year-over-year
Current Adoption
29.8%
Percentage of websites using HTTP/3 over time
Note:
- Data collected from 10+ million websites
- Margin of error: ±1%
- Projection based on linear trend extrapolation
Performance (Average metrics)
* QUIC: 0-RTT for returning users, ~80ms for new connections
What is QUIC?
QUIC (Quick UDP Internet Connections) is a modern transport protocol developed by Google that runs on UDP instead of TCP. It provides faster and more reliable communication with lower latency.
QUIC addresses key TCP issues such as head-of-line blocking, slow connection establishment, and lack of built-in encryption. The protocol combines transport functions and cryptography into a single layer, enabling faster and more efficient secure connection establishment.
QUIC is standardized by IETF in RFC 9000 and serves as the foundation for HTTP/3, providing significant performance improvements for web applications. The protocol is also used for DNS over QUIC (DoQ), VPN solutions, and other applications requiring low latency and high reliability.
Standard:
QUIC is standardized by IETF (Internet Engineering Task Force) in RFC 9000 "QUIC: A UDP-Based Multiplexed and Secure Transport".
RFC 9000 (IETF)Key Benefits:
Technical Specs
Transport
UDP
Encryption
TLS 1.3
Applications
HTTP/3, DNS over QUIC, VPN
HTTP/3 vs HTTP/2 Performance Improvements
Performance Improvement by Research
* Data from Google research, Cloudflare, Internet Society, and independent testing
- Connection Setup: 45% faster via 0-RTT and combined handshake
- Largest Contentful Paint (LCP): up to 20% improvement at 75th percentile
- Mobile Networks: 33% improvement due to better packet loss handling
Our QUIC Research
Performance Optimization
Research and optimization of BBRv3, FEC to achieve jitter < 1ms and goodput +15%
Learn More →