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How to be Fast - A Look at High Performance Websites

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Overview

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This talk examines how to measure website performance and improve speed through caching, compression, image optimization, modern HTTP protocols, asynchronous loading, and lazy loading. It emphasizes real-user metrics and practical optimization choices for web applications.

Syllabus

Intro
Load Time
Core Web Vitals
Largest Contentful Paint (LCP)
Measuring Performance
CRUX - Chrome User Experience Report
Real User Metrics
Cache Responses
Compression in Real Life
Inline Images
What about multiple locations?
Anycast Example
Head of Line Blocking
Parallel Requests
HTTP/2 Multiplexing
TLS 1.3 - Less Round Trips
Current Support Varies
Use async attribute
Lazy Load Images

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NDC Conferences

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