SVGs on the web: performance comparison based on how you load them
Inline, img, object, background, and sprites compared for caching and speed.
Performance news — Page 2
Dictionary compression is finally here, and it’s ridiculously good
How Compression Dictionary Transport shrinks JS bundles up to 90% in Chrome 130+.
Practical guide to the
<img>element: from basics to LCPImage markup tweaks that boost Core Web Vitals.
Stop turning everything into arrays
Lazy iterator helpers cut allocations and stop work early in UI data pipelines.
Bundle size investigation. A step-by-step guide to shrinking your JavaScript
A checklist for hunting megabytes, and shipping less JS.
Debugging web performance with Chrome DevTools
A practical checklist for spotting bottlenecks and validating fixes in real time.
Fixing the URL params performance penalty
New HTTP header boosts caching by ignoring tracking params.
Speeding up CSS with compression dictionaries
Using shared compression dictionaries to cut CSS load times and bandwidth across pages.
Performance monitoring for web components
Using the User Timing API to track real-world component performance
Evaluating frameworks performance
Comparing 10 meta-frameworks: Marko, SolidStart, SvelteKit, Qwik lead. React has limits.
React Compiler v1.0
Stable compiler auto-optimizes components, improves speeds up to 12%, used in Meta apps.