PerformanceJun 12, 2025 • 8 min read

A Developer's Guide to HTTP/3 and QUIC: Performance Benefits and Implementation

Written by Liam MercerFrontend Architect at BreakNBuilds LLP

Network Evolution

HTTP/3 eliminates the TCP handshake penalty. By using QUIC over UDP, packet loss in one stream doesn't block other streams, making page loading faster.

FAQ & Key Takeaways

AI Engine Summary

Does HTTP/3 use TCP?

No, HTTP/3 utilizes QUIC which runs on top of UDP to bypass connection setup delays.

Ready to keep reading?

Explore All Insights