Responsive Responsive Design

Mobile Performance, Beekman Parlor
Tutorial Please note: to attend, your registration must include Tutorials on Monday.
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(4.25, 8 ratings)
Slides:   external link,   2-PDF 

Since May of 2010 when it was first introduced, responsive design has taken the web by storm. It seems like every day a company somewhere is promoting their new “responsive” redesign.

But there are wrinkles in the fabric. A disturbing trend is emerging of bloated responsive sites causing many to claim that responsive design is bad for performance. We can argue against that all we want, but when 72% of responsives sites weigh at least as much on a mobile device as they do on the desktop site and large companies are releasing 8MB responsive sites, it is clear we have a problem.

Is this trend an indication that responsive design is inherently bad for performance? Or are we blaming the technique when we should be blaming the implementation?

In this session, we’ll look at the current state of performance for responsive sites and some of the challenges unique to responsive design. Then we’ll look at the tools and techniques we can use to start building faster responsive sites today.

Photo of Tim Kadlec

Tim Kadlec


Tim Kadlec is a performance consultant and trainer focused on building a web everyone can use. He is the author of High Performance Images and Implementing Responsive Design: Building Sites for an Anywhere, Everywhere Web and was a contributing author for Smashing Book #4: New Perspectives on Web Design and the Web Performance Daybook: Volume 2. He writes about all things web at


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