Adactio: Links

» The real conflict behind picture and @srcset (Cloud Four Blog)

Jason outlines the real challenge to every proposed solution for responsive images: they just don’t jibe with the way that browsers (quite rightly) pre-fetch images.

LukeW | Data Monday: E-commerce Performance

Time is money …especially when it comes to performance on the web.

HTTP Compression use by Alexa Top 1000 | Zoompf

An in-depth analysis (graphs! data!) of how popular sites are using—or not using—compression.

Highly optimized images for the web in 3 steps | pasz.nl/blog

Some practical advice for optimising your images on the web.

The state of responsive images | Feature | .net magazine

Wilto gives a thorough explanation of the state of things with responsive images, particularly the work being done at the Responsive Images Community Group at the W3C.

Mobile Battery Performance

This is my short explanation of Remy’s explanation of a BBC news article which is an explanation of an academic paper about battery performance of mobile devices when accessing websites.

Modern Web Development Part 1 – The Webkit Inspector

This is a very in-depth look at how to become a power user of the Web Inspector in Webkit browsers. I’m sitting down with a nice cup of tea to go through all of this.

10 questions about web performance – Jeremy Keith at Clearleft

I had a chat with the guys from Pingdom about performance’n’stuff. If I sound incoherent, that’s because this is a direct transcription of a Skype call, where, like, apparently I don’t, y’know, talk in complete sentences and yeah.

An Ajax-Include Pattern for Modular Content | Filament Group, Inc., Boston, MA

Scott walks through the code and thinking behind the conditional loading pattern on The Boston Globe site. This is such a useful and valuable pattern!

Pingdom Tools

A handy performance testing tool from Pingdom, similar to Google’s offering.

First thing you should do to optimize your desktop site for mobile « Cloud Four

Jason reiterates Bruce’s rallying cry: Performance First!

If you could only do one thing to prepare your desktop site for mobile and had to choose between employing media queries to make it look good on a mobile device or optimizing the site for performance, you would be better served by making the desktop site blazingly fast.

Bruce Lawson’s personal site : What Users Want from Mobile, and what we can re-learn from them

Bruce hammers home the importance of speed and performance on mobile (and frankly, everywhere).

So perhaps some of the time and effort put into media queries, viewports, avoiding scrolling, line length would actually be better employed reducing HTTP requests and optimising so that websites are perceived to render faster.

ImageAlpha — lossy compression for 24-bit PNG images

From Kornel, the genius who gave us ImageOptim, comes another Mac desktop tool for optimising PNGs, this time converting 24-bit PNG to 8-bit with full alpha channel.

nathanford/pngy - GitHub

A script that attempts to detect connection speed (by requesting a test file three times in a row) in order to determine whether hi-res images should be requested or not.

What We Don’t Know // Speaker Deck

The slides from Chris’s presentation on the known unknowns of the web.

Sirens | Aaron Mentele

Some very interesting results from testing background image downloads contained within media queries or overridden with media queries: it turns out that, in iOS at least, the browser is getting smarter and smarter.

On designing content-out (a response to Zeldman and others) | Stephanie Rieger

Stephanie details all the things we have to know about when designing for today’s broad range of devices: performance, capabilities, form factor, pixel density, and network latency.

These are all good points but I worry that if we just concentrate on the current device landscape, our processes won’t adapt to the future.

REDbot: <>

Oh, this is very handy indeed: a quick lint tool for HTTP so you can see what kind of headers are being sent. There’s a bookmarklet in the footer too.

Polyfilling The HTML5 Gaps With JavaScript

An in-depth look at browser polyfills: what they are, how they work, and how you can make your own.

Post Web site loads too slowly - The Washington Post

Performance matters. Here, the Washington Post compares its own weak performance (hampered by ads and tracking shite) to the optimised experience of porn sites.

Stubbornella » Blog Archive » Don’t Style Headings Using HTML5 Sections

Nicole provides a step-by-step explanation of why it will probably benefit you to add classes to your headings to ensure consistent styling without writing overly-verbose CSS.

Jake Archibald - Font-Face - Good vs Legal on Vimeo

Jake’s talk at DIBI earlier this year was absolutely fantastic. It features a rape reference, a story about pissing, and a Human Centipede metaphor.

It’s also very, very informative. Watch this.

Appcache Facts

A handy one-page cheatsheet for using HTML5’s appcache manifest file for offline storage.

mySociety » Blog Archive » Mobile operators altering (and breaking) web content

In an attempt to “optimise” performance, T-Mobile and Orange are actually breaking jQuery.

Page Speed Service Home

Performance shit just got real.

You can now sign up with Google to have your site pass every request through them and get your documents served up optimised.

Responsive web design from the future — Warpspire

I really like the thinking that’s gone into the design of Github, as shown in this presentation. It’s not really about responsive design as we commonly know it, but boy, is it a great deep dive into the importance of URLs and performance.

Don’t use IDs in CSS selectors? ❧ Oli.jp (@boblet)

I agree with Oli’s conclusion:

Save IDs for fragment identifiers or JavaScript hooks.

Tags: performance

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