Improve Your Web Application Using Progressive Web Metrics
summary
Shows how to measure and improve web performance using Lighthouse, 3G network throttling and real-device traces to track First Contentful Paint and Time to Interactive; reports real baselines (median mobile 3G ~19s, 53% abandon by 3s) and concrete fixes such as deferring scripts and removing a heavy unused editor to cut a Babel demo TTI from ~7s to ~2.8s. Presents a CLI plus Google Sheets integration and a progressive-web-metrics runtime to automate runs, collect traces and guard against regressions so performance gains are maintained.
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chapters (10)
- 0:00PWA intro
- 7:14Mobile performance
- 10:05Progressive Web Metrics
- 11:34Page load metrics
- 15:29Optimization techniques
- 18:47Babel site demo
- 22:23Lighthouse automation
- 24:12Team workflow
- 27:42Open source metrics
- 28:23Summary
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