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Posts Tagged ‘Performance’.

We are pleased to present below all posts tagged with ‘Performance’.

Front-End Performance Checklist 2017 (PDF, Apple Pages)

Are you using progressive booting already? What about tree-shaking and code-splitting in React and Angular? Have you set up Brotli or Zopfli compression, OCSP stapling and HPACK compression? Also, how about resource hints, client hints and CSS containment — not to mention IPv6, HTTP/2 and service workers?

PRPL Pattern in the application shell architecture

Performance isn’t just a technical concern: It matters, and when baking it into the workflow, design decisions have to be informed by their performance implications. Performance has to be measured, monitored and refined continually, and the growing complexity of the web poses new challenges that make it hard to keep track of metrics, because metrics will vary significantly depending on the device, browser, protocol, network type and latency (CDNs, ISPs, caches, proxies, firewalls, load balancers and servers all play a role in performance).

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Sponsored Article Best Practices For Animated Progress Indicators

Visibility of system status is one of the most important principles in user interface design. Users want to feel in control of the system they’re using, which means they want to know and understand their current context at any given time, and especially when a system is busy doing work. A wait-animation progress indicator is the most common form of providing a system status for users when something is happening or loading.

An adorable animated kitten on blue background

While an instant response from an app is the best, there are times when your app won’t be able to comply with the guidelines for speed. A slow response could be caused by a bad internet connection, or an operation itself can take a long time (e.g. install an update for OS). For such cases, in order to minimize user tension, you must reassure users that the app is working on their request and that actual progress is being made. Thus, you should provide feedback to the user about what is happening with the app within a reasonable amount of time.

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Next Generation Server Compression With Brotli

Chances are pretty good that you’ve worked with, or at least understand the concept of, server compression. By compressing website assets on the server prior to transferring them to the browser, we’ve been able to achieve substantial performance gains.

Next Generation Server Compression With Brotli

For quite some time, the venerable gzip algorithm has been the go-to solution for reducing the size of page assets. A new kid on the block has been gaining support in modern browsers, and its name is Brotli. In this article, you’ll get hands-on with Brotli by writing a Node.js-powered HTTP server that implements this new algorithm, and we’ll compare its performance to gzip.

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Responsive Images In WordPress With Art Direction

Support for responsive images was added to WordPress core in version 4.4 to address the use case for viewport-based image selection, where the browser requests the image size that best fits the layout for its particular viewport.

Responsive Images In WordPress With Art Direction

Images that are inserted within the text of a post automatically get the responsive treatment, while images that are handled by the theme or plugins — like featured images and image galleries — can be coded by developers using the new responsive image functions and filters. With a few additions, WordPress websites can accommodate another responsive image use case known as art direction. Art direction gives us the ability to design with images whose crop or composition changes at certain breakpoints.

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Ways To Reduce Content Shifting On Page Load

Have you ever opened a website, started reading and, after some time had passed and all assets had finished loading, you found that you’ve lost your scroll position? I undergo this every day, especially when surfing on my mobile device on a slow connection — a frustrating and distracting experience.

Ways To Reduce Content Shifting On Page Load

Every time the browser has to recalculate the positions and geometries of elements in the document, a reflow happens. This happens when new DOM elements are added to the page, images load or dimensions of elements change. In this article, we will share techniques to minimize this content shifting.

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A Glimpse Into The Future With React Native For Web

One of the hardest decisions to make when starting a new app is which platforms to target. A mobile app gives you more control and better performance but isn’t as universal as the web. If you’re making a mobile app, can you afford to support both iOS and Android?

A Glimpse Into The Future With React Native For Web

What about trying to build a mobile app and a responsive web app? Ultimately, the best experience for your customers is for your app to work everywhere, but the development and maintenance costs of that can be prohibitive.

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Optimizing Critical-Path Performance With Express Server And Handlebars

Recently, I’ve been working on an isomorphic React website. This website was developed using React, running on an Express server. Everything was going well, but I still wasn’t satisfied with a load-blocking CSS bundle. So, I started to think about options for how to implement the critical-path technique on an Express server.

This article contains my notes about installing and configuring a critical-path performance optimization using Express and Handlebars. Throughout this article, I’ll be using Node.js and Express. Familiarity with them will help you understand the examples.

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Sponsored Post Five Simple Steps To Test Your Varnish Cache Deployment Using Varnishtest

Varnish Cache is an open source HTTP accelerator that is used for speeding up the content delivery of the world’s top content-heavy dynamic websites. However, the performance or speed a newcomer to Varnish Cache can expect from its deployment can be quite nebulous.

Five Simple Steps To Test Your Varnish Cache Deployment Using Varnishtest

This is true for users at both extremes of the spectrum: from those who play with its source code to create more complex features to those who set up Varnish Cache using the default settings.

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How To Manage Mobile Performance Optimization

You can’t underestimate the importance of consistent, high-quality web design across devices of all shapes and sizes. Responsive web design is the way forward — but it’s often linked to performance issues. This is critical when 64% of smartphone users unforgivingly expect websites to load in under four seconds, yet average page weights continue to rise.

Managing Mobile Performance Optimization

The best designs balance aesthetics and performance by working with mobile in mind from the start. From setting strict performance budgets to implementing client- and server-side optimization techniques, I’ll share the current mobile performance optimization processes we use at Cyber-Duck.

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