Jonas Kröger
Frontend Performance Testing in practice
#1about 5 minutes
Why frontend performance is crucial for business and users
Poor performance negatively impacts users with slow internet or low-end devices and directly harms business revenue and signups.
#2about 3 minutes
Understanding key frontend performance metrics and KPIs
Key performance indicators like Time to Interactive and First Contentful Paint translate technical measurements into the perceived user experience.
#3about 2 minutes
Setting aggressive goals for key performance metrics
Establish clear, aggressive targets for metrics like JavaScript bundle size and Time to Interactive to guide optimization efforts.
#4about 3 minutes
An overview of proactive, reactive, and passive testing
Performance testing can be categorized into proactive (during development), reactive (in CI/CD), and passive (continuous monitoring) approaches.
#5about 5 minutes
Proactive testing with dev tools and bundle analyzers
Use browser dev tools for network throttling and tools like Webpack Bundle Analyzer to identify large dependencies during local development.
#6about 11 minutes
Automating reactive performance testing in your CI/CD pipeline
Integrate automated Lighthouse and WebPageTest runs into your CI/CD pipeline to track performance KPIs and enforce budgets on every build.
#7about 3 minutes
Using passive testing for continuous real-user monitoring
Employ external services like New Relic or Calibre to continuously monitor live site performance and gather real-user data over time.
#8about 3 minutes
Key takeaways for building a strong performance culture
Building a performance-focused culture relies on collecting data, automating everything, and fostering developer empathy through practices like "2G Tuesdays".
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Key takeaways for automated performance testing
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02:47 MIN
Why frontend performance is critical for users
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03:10 MIN
How to measure web performance with browser tools
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03:20 MIN
How to measure PWA performance with key tools
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03:05 MIN
Integrating performance, accessibility, and security tests
Trunk-Based Development at Scale: Real-World Insights from a High-Traffic Luxury E-Commerce Platform
01:56 MIN
Why front-end performance matters for business success
Multithreading in Javascript: A guide to Web Workers
02:44 MIN
The performance problem with modern web applications
Qwik: Making sure that easy is same as performant
01:57 MIN
The two primary approaches for improving frontend performance
To New Frontiers: The Future of Frontend Development
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