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Web Performance Bookshelf

Rigor

When it comes to web content, you can easily find what you need through many different paths, from search engines and social media to playlists and blogs, jumping from one source to another with just a tap of a finger. Web Performance Collection. High Performance JavaScript. Professional Website Performance.

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Don’t Sink Your Website With Third Parties

Smashing Magazine

You may have a lean, agile, responsive site design only to find it gradually loaded down with more and more “extras” that are often put onto the site by marketing departments or business leaders who are not always thinking about website performance. Graph of resource request chains on a typical news media website.

Website 131
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How To Boost Resource Loading With The New Priority Hint `fetchpriority`

Smashing Magazine

JavaScript, CSS, images, iframes, and other resources impact how quickly website loads, renders and becomes usable to the user. Loading experience is crucial to the user’s first impression and overall usability, so Google defined Largest Contentful Paint (LCP) metric to measure how quickly the main content loads and is displayed to the user.

Media 69
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2021 in review: It was a big year!

Speed Curve

Google's Core Web Vitals have been a huge topic this year. We've been tracking these as individual metrics – Largest Contentful Paint, First Input Delay, and Cumulative Layout Shift – since before Google branded them as a set. Performance Budgets 101. Performance Culture Best Practices.

Retail 52
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The Great Firewall of China: Obstacles to Monitoring Performance

Dotcom-Montior

These updates will disable access of Google apps downloader, for example. A website that is accessed in China for the first time will have a slow loading time due to this process. Therefore, even foreigners inside China will also opt to use the local counterparts of banned apps and websites due to speed.

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Hybrid Lazy Loading: A Progressive Migration To Native Lazy Loading

Smashing Magazine

in which he stated that the Google Chrome team are already developing the feature and intend to ship it in Chrome 75. The best practice is to do this for the primary images — typically for the ones that will be displayed above the fold. <img media="(min-width: 1200px)". media="(min-width: 800px)".

Website 103
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Front-End Performance Checklist 2021

Smashing Magazine

Defining The Environment Choosing a framework, baseline performance cost, Webpack, dependencies, CDN, front-end architecture, CSR, SSR, CSR + SSR, static rendering, prerendering, PRPL pattern. Assets Optimizations Brotli, AVIF, WebP, responsive images, AV1, adaptive media loding, video compression, web fonts, Google fonts.