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Web Font Performance: Weighing @font-face Options and Alternatives 28 Feb 2012 | 05:38 pm
Web fonts are a key ingredient in today's website designs; at my employer (AOL) it is a given redesigns will feature downloadable fonts. The days of maintaining a sprite full of graphic text headlines...
Google’s Button is Slow…And so is Facebook’s. 3 Jun 2011 | 04:48 pm
There, I said it! Yes Google, who built speed into its core values, has an entire website dedicated to making the web faster, developed PageSpeed, invents protocols named “SPDY”, and makes bad ass vi...
Foreground <img> Sprites – High Contrast Mode Optimization 21 Apr 2010 | 08:00 am
An issue that has stressed the relationship between web performance and accessibility is the little known fact that CSS image sprites, a technique used to reduce image HTTP requests, dissappear in Mic...
Web Performance Impacts Revenue: Velocity ’09 Highlights 27 Jun 2009 | 10:02 am
I just got back from Velocity, a new-ish (2nd one) performance & scalability/availability conference. Last year, a common complaint was a lack of presentations around “why speed matters” and this year...
jQuery Performance Rules 9 Apr 2009 | 01:37 pm
Once upon a time, all we needed to worry about was reducing Bytes and Requests and playing around with load order to make things faster. Nowadays, we are increasingly impacting one more major componen...
Bulk Image Compression with Photoshop Droplets 11 Aug 2008 | 02:14 pm
I recently exported a bunch of photos from iPhoto for an article I am working on, and discovered there was very little compression applied. Even at a lower 640 by 480 dimension size, the 30 images tot...
Using mod_concat to Speed Up Start Render Times 2 Aug 2008 | 02:43 am
The most critical part of a page’s load time is the time before rendering starts. During this time, users may be tempted to bail, or try a different search result. For this reason, it is critical to o...
PNG Alpha Transparency – No Clear Winner 26 Jul 2008 | 09:58 am
As a long time user of Adobe Photoshop, I missed the boat on a very important discovery in image optimization – PNG-8 supports full alpha transparency! Alex Walker wrote a great article on PNG and in...
Beating Blocking JavaScript: Asynchronous JS 24 Jul 2008 | 07:03 am
MSN is now implementing a technique for loading JavaScript in a way that doesn’t stall the rendering of the document. They use Dynodes, a technique I also recommend for loading functionality on demand...
Optimizing Web Performance with AOL Pagetest 11 Jul 2008 | 03:26 pm
In this screencast, I walk through how to analyze your site using the reports generated by AOL Pagetest, and explain why and how to go about addressing your pressing performance issues. Come for the t...
