Lighthouse performance score guide

Lighthouse (by Google) is a fun and easy tool used to test web app performance. It’s so easy in fact that all you do is click a button, and within seconds a magic number between 0 and 100 is generated for you. This magic number basically tells you how…

Lighthouse: lazy-loading offscreen and hidden images

This article is part 2 of Fly's Google Lighthouse Series, which is a series aimed at helping you achieve better lighthouse scores through solutions to each Lighthouse audit recommendation. The series starts here, enjoy! We'll be continuing our Google Lighthouse series with part two, where I'll be explaining how you…

Remove render bottlenecks with Fly

Deep in the nethers of internetland, there's an e-commerce site that takes 22 seconds to load. The products are great, but nobody's gonna wait. There's lots of quality new traffic, but the bounce rate is astronomic. Every premature bounce is wasted marketing. The worst part? Impatient people don't buy, so…

Optimize stock photos on-the-Fly

We’ve all created images in Photoshop that are large, modern looking and definitely on-trend. But what we later come to realize is that the file sizes of these images are astronomical and severely slowing down our apps, providing users with a not-so-great experience. In fact, many will completely abandon…

What Makes Applications Slow

You have about 2 seconds before your application starts feeling slow to your visitors. This comfortable 2 seconds is your latency budget. We'll look at three things that leech this precious time: the armour of TLS, JavaScript Pixies, and the Speed of Light itself. After that, we'll share the dream…