Using Screenshots in Production

While looking at a WebPageTest waterfalls, I often come across surprising attributes.  A few weeks back, I came across a page that had images with a familiar file naming convention: https://twitter.com/dougsillars/status/1086196363010949121 This website is using the Mac screenshot tool to create images that they are using online!   Image Optimization I've written a lot about … Continue reading Using Screenshots in Production

Mobile Web and Video Streaming:  What trends do we see?

In previous posts on video streaming, I’ve looked at how video adaptive streaming works and some of the performance impacts on video on the mobile web.  In this post, I’d like to combine these two ideas by looking at how websites are streaming video, and see if websites are following the best practices I have proposed. … Continue reading Mobile Web and Video Streaming:  What trends do we see?