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Issue № 371

Improving UX Through Front-End Performance

by Lara Swanson30 Comments

Adding half a second to a search results page can decrease traffic and ad revenues by 20 percent, says a Google study. For every additional 100 milliseconds of load time, sales decrease by 1 percent, Amazon finds. Users expect pages to load in two seconds—and after three seconds, up to 40 percent will simply leave. The message is clear: we must make performance optimization a fundamental part of how we design, build, and test every site we create—for every device. Design for performance; measure the results.

The Era of Symbol Fonts

by Brian Suda43 Comments

Welcome to the third epoch in web performance optimization: symbol fonts. Everything from bullets and arrows to feed and social media icons can now be bundled into a single, tiny font file that can be cached and rendered at various sizes without needing multiple images or colors. This has the same caching and file size benefits as a CSS sprite, plus additional benefits we’re only now realizing with high-resolution displays. Discover the advantages and explore the challenges you’ll encounter when using a symbol font.

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From the Blog

Getting Started With CSS Audits

This week I wrote about conducting CSS audits to organize your code, keeping it clean and performant—resulting in faster sites that are easier to maintain. Now that you understand the hows and whys of auditing, let’s take a look at some more resources that will help you maintain your CSS architecture. Here are some I’ve recently discovered and find helpful.