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An Approach to Lazy Loading Custom Elements
13.2.2023
We’re fans of Custom Elements around here. Their design makes them particularly amenable to lazy loading, which can be a boon for performance.
Inspired by a colleague’s experiments, I recently set about writing a simple auto-loader: Whenever a custom …
An Approach to Lazy Loading...
How to Show Images on Click
27.5.2021
Most images on the web are superfluous. If I might be a jerk for a bit, 99% of them aren’t event that helpful at all (although there are rare exceptions). That’s because images don’t often complement the text they’re …
The post How to Show Images on Click appeared first...
A Bare-Bones Approach to Versatile and Reusable Skeleton Loaders
3.3.2021
UI components like spinners and skeleton loaders make waiting for a page load less frustrating and might even affect how loading times are perceived when used correctly. They won’t completely prevent users from abandoning the website, but they might encourage …
The post A Bare-Bones Approach...
Native Image Lazy Loading in Chrome Is Way Too Eager
5.2.2020
Interesting research from Aaron Peters on <img loading="lazy" ... >:
On my 13 inch macbook, with Dock positioned on the left, the viewport height in Chrome is 786 pixels so images with loading="lazy" that are more than 4x the viewport down the page are eagerly fetched by Chrome...
Lazy load embedded YouTube videos
20.8.2019
This is a very clever idea via Arthur Corenzan. Rather than use the default YouTube embed, which adds a crapload of resources to a page whether the user plays the video or not, use the little tiny placeholder webpage that is just an image you can click that is linked to the YouTube embed.
It still...
Weekly Platform News: HTML Loading Attribute, the Main ARIA Specifications, and Moving from iFrame to Shadow DOM
15.8.2019
In this week's roundup of platform news, Chrome introduces a new attribute for loading, accessibility specifications for web developers, and the BBC moves visualizations to the Shadow DOM.
Chrome ships the loading attribute
The HTML loading attribute for lazy-loading images and iframes is...
Get Peak WordPress Performance with Jetpack
18.7.2019
The irony of web performance is that the average page weight of a site continues to go up year after year, despite us being more aware of the problem and having more tools at our disposal to fight it than ever.
To paraphrase Seinfeld, "we know how to fight page weight issues; we just don't use...
Tips for rolling your own lazy loading
1.7.2019
You may have heard (or even issued the call) that “we can just use lazy loading!” when looking for a way to slim down a particularly heavy web page.
Lazy loading is a popular technique for gradually requesting images as they come into view, rather than all at once after the HTML of the page...
A Deep Dive into Native Lazy-Loading for Images and Frames
15.5.2019
Today's websites are packed with heavy media assets like images and videos. Images make up around 50% of an average website's traffic. Many of them, however, are never shown to a user because they're placed way below the fold.
What’s this thing about images being lazy, you ask? Lazy-loading...
Native Lazy Loading
9.4.2019
IntersectionObserver has made lazy loading a lot easier and more efficient than it used to be, but to do it really right you still gotta remove the src and such, which is cumbersome. It's definitely not as easy as:
<img src="celebration.jpg" loading="lazy" alt="..." />
Addy Osmani says...