CSS loading and Critical CSS

CSS loading and Critical CSS

Solving for CSS loading optimizations

Make a submission

Accepting submissions till 03 Sep 2021, 11:00 PM

About the conference

CSS loading optimizations like Critical CSS are often one of the main tools to optimise for the first meaningful paint metric. This directly impacts the user experience as it lets the browser paint pixels on the screen with minimum data possible.

There are multiple parts to this problem such as:
- Detecting what all markup and CSS to load.
- How to lazy load the rest of the stylsheets.
- What strategy to use to evaluate critical CSS.
- How to do this without impacting time to first byte.

This conference is curated by Prateek Bhatnagar, frontend architect at Uber. Previously, Prateek was senior software engineer (frontend), collaborating with NextJS to help push the bar of performance on web using wrapper frameworks.

Speakers from Quintype, Publicis Sapient, Zivame and Miranj will share their experiences with implementing Critical CSS. See the Submissions and Schedule for details.

Key takeaways from this conference

  • Evaluate a variety of options for improving important web vitals.
  • Knowledge about tools and frameworks which are providing these optimizations out of the box.
  • Awareness about popular techniques around dead code elimination.

Contact information: For inquiries about participating in the conference, post a comment at https://hasgeek.com/jsfoo/css-loading-and-critical-css/comments
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JSFoo is a forum for discussing UI engineering; fullstack development; web applications engineering, performance, security and design; accessibility; and latest developments in #JavaScript. Follow JSFoo on Twitter more

Sourabh Kumar

@thepixelton

Critical CSS - The What, Why & How?

Submitted Aug 31, 2021

Before getting to the fulfilment of any subject, it is important to understand the requirement that led to its inception. So this talk will dwell on the fundamentals of,
- CSSOM,
- Render-blocking resources
- Page performance measurement metrics
- Key improvement areas for overall and perceived performance
- CSS extraction techniques for better speed and UX,
- Frameworks/libraries implementing those techniques along with the pros & cons list
- The best practices to follow for implementation.

After this session, you should have an understanding
- To assess the relevance of a particular optimisation against their project context.
- To measure the degree of its applicability.
- To identify resources and directions to explore to achieve the same.

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Make a submission

Accepting submissions till 03 Sep 2021, 11:00 PM

Hosted by

JSFoo is a forum for discussing UI engineering; fullstack development; web applications engineering, performance, security and design; accessibility; and latest developments in #JavaScript. Follow JSFoo on Twitter more