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Front-End Performance Checklist 2021

Smashing Magazine

Build Optimizations JavaScript modules, module/nomodule pattern, tree-shaking, code-splitting, scope-hoisting, Webpack, differential serving, web worker, WebAssembly, JavaScript bundles, React, SPA, partial hydration, import on interaction, 3rd-parties, cache. This improves page load time and caching during navigations.

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HTTP/3: Practical Deployment Options (Part 3)

Smashing Magazine

This approach was touted to be better for fine-grained caching because each subresource could be cached individually and the full bundle didn’t need to be redownloaded if one of them changed. For example, you could reduce compression efficiency , because that works better with more data. Tools and Testing.

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Front-End Performance Checklist 2019 [PDF, Apple Pages, MS Word]

Smashing Magazine

Keep in mind that a good performance picture covers a set of performance metrics, lab data and field data : Synthetic testing tools collect lab data in a reproducible environment with predefined device and network settings (e.g. Real User Monitoring ( RUM ) tools evaluate user interactions continuously and collect field data (e.g.

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Front-End Performance Checklist 2020 [PDF, Apple Pages, MS Word]

Smashing Magazine

Keep in mind that a good performance picture covers a set of performance metrics, lab data and field data : Synthetic testing tools collect lab data in a reproducible environment with predefined device and network settings (e.g. Real User Monitoring ( RUM ) tools evaluate user interactions continuously and collect field data (e.g.