Description

Recording date: 2019-08-20

John Papa @John_Papa

Ward Bell @WardBell

Dan Wahlin @DanWahlin

Katie Hempenius @KatieHempenius

Resources:

• Katie Hempenius on Twitter
• Katie's talks
• Nostate Prefetch
• Katie at Smashing Conf talking about code splitting and other performance topics
• Katie's talk on Speed at Scale
• Why Web Performance Matters
• Web Performance made easy
• Lighthouse tools for web performance
• Server Compression with Express
• .NET Core compression
• nginx compression
• express compression
• oh no, stylesheet grows grows grows
• Unused CSS
• Authoring critical above the fold css
• Addy Osmani's Critical CSS tool
• CSS and CI
• Time to Interactive (TTI)
• Latency vs bandwidth
• TCP Slow Start

Final Tips

• Google Lighthouse
• Cave Diver Jill Heinerth
• CSS Tricks
• Google Developers

Timejumps

• 02:24 Guest introduction
• 07:01 What is web performance at Google?
• 10:37 Sponsor: ag-Grid
• 12:00 What's so important about lazy loading and code splitting?
• 19:59 Does script order matter?
• 20:58 What are the things most of us do wrong?
• 31:58 Sponsor: IdeaBlade
• 33:02 What is TTI and why should we care?
• 36:07 Do service workers change the equation?
• 40:17 Latency vs bandwidth?
• 44:41 Final tips