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Links on Performance V

CSS - Tricks

Optimizing resource loading with Priority Hints — Leena Sohoni, Addy Osmani, and Patrick Meenan talk about the Priority Hints… uh… I’d call it an API except it’s really just an importance attribute in HTML, or a JavaScript param in other APIs. Here’s the draft spec.

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World’s Top Web Performance Leaders To Watch

Rigor

She is the author of a number of books, including Get Ready for CSS Grid Layout , The New CSS Layout , and The Profitable Side Project. All together, she has written 23 books as a solo or co-author since 2002. An author , an educator , and a speaker , Max is an independent consultant in the mobile and web space. Andy Davies.

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User-centric Metrics Matter to Ecommerce. Start with These Five.

Rigor

Image credit: Addy Osmani). Image credit: Addy Osmani. Special thanks to contributing author Alla Gringaus. This is the first moment at which users can see and consume the first informative content on the page. First Contentful Paint is when the user can see and consume the first informative content.

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AMP and Incentives

Tim Kadlec

It’s also the only JavaScript allowed: author-written scripts, as well as third party scripts, are not valid. Addy Osmani was kind enough to make a video for those who can’t see the demo in their region.). You also use the AMP JavaScript library. This library is responsible for loading all external resources needed for a page.

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A Guide To Image Optimization On Jamstack Sites

Smashing Magazine

Addy Osmani. Modern image formats (AVIF or WebP) can improve compression by up to 50% and deliver better quality per byte while still looking visually appealing.” — Addy Osmani (Image optimization expert). This is why a lot of our guidance on performance talks about image optimization.

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Cache and Prizes

Alex Russell

At this point, it seems helpful to step back and consider that the question of resource caching may have different constituencies with different needs: Framework Authors may be proposing caching to reduce the costs to their sites or users of their libraries. Own Goals #. End Users may want better caching of resources to speed up browsing.

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Improving JavaScript Bundle Performance With Code-Splitting

Smashing Magazine

In addition to that, we also need to make sure that the bundles for restricted sections of the page are loaded by the authorized users only. JavaScript processing times are vastly different between high-end, average and low-end devices (Image source: ' The cost of JavaScript in 2019 ' by Addy Osmani) ( Large preview ).

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