Everything You Need to Know About QUIC and HTTP3

Explore the evolution of HTTP protocols and the introduction of QUIC in this comprehensive 29-minute video from Nginx. Dive into the history of HTTP, from HTTP/1.1 to HTTP/3, and understand why HTTP/3 emerged just six years after HTTP/2. Learn about the challenges faced with HTTP/2, including head-of-line blocking, and discover how QUIC addresses these issues. Examine the current state of HTTP deployment, environmental factors affecting performance, and new challenges introduced by HTTP/3. Gain insights into HTTP version negotiation, UDP exfiltration, and the nginx-quic implementation. Conclude with a summary of essential knowledge about QUIC and HTTP/3, equipping you with a solid understanding of these cutting-edge web technologies.

Introduction
Quick history breakdown of QUIC and HTTP3
HTTP/1.1 c. 1997
HTTP/2 c.2015
HTTP/3 .c2021
HTTP Stacks
HTTP Versions Today
Reality of HTTP Deployment
Environmental Factors
Revisiting the timeline of HTTP
What went wrong with HTTP/2
Head-of-line blocking hurts user experience
QUIC to the rescure
New Challenges
New Challenges: HTTP Version Negotiation
HTTP/3 Version Negotiation
New Challenges: UDP Exfiltration
nginx-quic
NGINX Configuration: HTTP/1
Summary of everything you need to know about QUIC and HTTP3