I frequently get asked about how content delivery networks (CDNs) fit into the bigger performance picture. Here are the answers to the most commonly asked questions all in one easy-to-scan post. 🙂
In lieu of simply believing that many of the performance best practices should be automated just because industry gurus say they should, let’s get specific on the cost savings in terms of person-hours of work. Here are some formulas for calculating developer ROI.
There’s a growing awareness of the fact that third-party content can cause a major hit to your website’s performance. Good. Great. Now we need to tackle what I’ve dubbed “fourth-party calls”. Not only can these insidious server calls leach performance, they also have massive security implications.
Keep-alives and compression are two of the easiest, lowest-hanging fruit on the performance optimization tree, yet almost half of the leading retail websites aren’t taking advantage of these best practices simultaneously. How to identify and fix this problem on your site.
Web page speed tests of the top 20 holiday ecommerce sites – from Amazon to Zappos – showing huge disparities in site speed and page load time. I also demonstrate some new ways to visually present test results to make them meaningful to other stakeholders in your organization.
I ran performance tests on 27 leading online retail websites — from eBay to Groupon — to see how fast they load and to illustrate the pros and cons of relying on performance indices and industry benchmarks to evaluate your site.
Updating my performance stats “cheat sheet” with brand-new data from Gomez and old-ish data from Forrester.
What I clicked this week: links about the uneasy relationship between vacations and technology.
What I clicked this week.
The mainstream web performance community is rapidly amassing reams of data in this area. But when it comes to the mobile web, we’re pretty much at square one. The problem is threefold: lack of performance-measuring tools, need for large-scale A/B testing, and lack of information sharing.