BLOG · WEB PERFORMANCE
Method, real cases and tools to improve loading, responsiveness and stability, with no shortcuts for the tests.
How Core Web Vitals have changed since 2020, the life cycle of a metric, the directions under experimentation and how to prepare for changes without chasing every novelty.
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Bundles, code splitting, dynamic imports and tree shaking explained simply: how to reduce a site’s JavaScript, how to see what is in the bundle and what to ask…
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How to prepare a reliable recording, read the tracks and the flame chart, and use the Chrome Performance panel to diagnose LCP, CLS and INP.
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How content-visibility defers the rendering of off-screen content, how contain confines recalculation to components, what container queries change and which scripts can be replaced with CSS.
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Why some properties cost far less than others, how the compositor keeps animations smooth even when the main thread is busy, will-change, scroll-linked animations and effects on INP…
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The cost of analytics, pixels and behavior analysis tools, how to govern the tag manager, what changes with server-side tracking and when lighter tools are enough.
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In SPAs LCP measures only the first load while CLS and INP accumulate over the whole session: how the metrics behave, the cost of hydration, the answers of…
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The cookie banner can become the LCP element, shift the content and slow down the first click: how it happens and how to implement consent in a compliant…
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Delaying JavaScript until the first interaction zeroes out Total Blocking Time in tests, but moves all the work onto the user’s first tap: what happens to INP, to…
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