Feature Toggle Using DNS CNAME Chain

I started with a question: Is there a way to toggle between two dramatically different site capabilities in less than five seconds? Here’s how I found the answer. I recently wrote a white paper in which this issue of toggle times appeared. The topic was using your CDN to...

Categories: Technology

Akamai CLI, Now With NPM Install

Earlier this year we introduced the Akamai CLI, a new way to manage and configure Akamai from the command line, and our customers have been very excited about it. Along the way, several customers asked if there’s an easier method for installing the binary and getting started. We noticed...

Categories: DevOps, Technology

Beware of PerformanceTiming.domInteractive

The web is more complex now than ever before. Web pages today contain hundreds of objects—images, stylesheets, and JavaScript; not to mention a lot of slow loading third-party scripts—that all need to load before users can fully enjoy their web browsing experience. However, the more objects we add to...

Categories: Technology

Measuring the Performance of Firefox Quantum with RUM

On Nov 14th, Mozilla released Firefox Quantum. On launch day, I personally felt that the new version was rendering pages faster and I heard anecdotal reports indicating the same. There have also been a few benchmarks which seem to show that this latest Firefox version is getting content to...

Categories: Technology

How-To: Replaying Cellular Network Characteristics on Cloud Infrastructure

As researchers of web performance, we’ve always wanted to measure the quality of experience for loading web pages from the perspective of our users. Today, Real User Monitoring (RUM) systems allow web developers to utilize the browser-exposed Navigation and Resource Timing APIs through JavaScript injected into the HTML. Although...

Categories: Technology