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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. You cannot always anticipate what you cannot control.

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Hybrid Lazy Loading: A Progressive Migration To Native Lazy Loading

Smashing Magazine

Lazy loading is a way to improve the performance of a website or web application by maximizing the rendering speed of the above-the-fold images and iframes (and sometimes videos) by deferring the loading of below-the-fold content. With these very simple and easy steps, you’ll have enabled hybrid lazy loading in your website!

Website 103
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Front-End Performance Checklist 2019 [PDF, Apple Pages, MS Word]

Smashing Magazine

However, as long as there is no established endorsement of the performance culture, each decision will turn into a battlefield of departments, breaking up the organization into silos. Without a strong alignment between dev/design and business/marketing teams, performance isn’t going to sustain long-term. Intended as a RUM metric only.

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Improving JavaScript Bundle Performance With Code-Splitting

Smashing Magazine

In this article, we’re going to cover code-splitting best practices and showcase some examples using React, so we load the minimum JavaScript necessary to render a page and dynamically load sizeable non-critical bundles. JavaScript’s effect on performance consists of download, parsing and the execution costs. Large preview ).

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Front-End Performance Checklist 2021

Smashing Magazine

However, as long as there is no established endorsement of the performance culture, each decision will turn into a battlefield of departments, breaking up the organization into silos. Note : If you use Page Speed Insights or Page Speed Insights API (no, it isn’t deprecated!), Start Render time, Speed Index ).

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

Smashing Magazine

However, as long as there is no established endorsement of the performance culture, each decision will turn into a battlefield of departments, breaking up the organization into silos. Without a strong alignment between dev/design and business/marketing teams, performance isn’t going to sustain long-term. Large preview ).