On HTTPS and Hard Questions
Explores the unintended negative consequences of HTTPS on local caching servers in low-bandwidth, high-latency environments like Uganda.
Explores the unintended negative consequences of HTTPS on local caching servers in low-bandwidth, high-latency environments like Uganda.
How to create a custom polyfill endpoint using polyfill-service to serve only necessary polyfills, improving performance and reducing bundle size.
Explains why focusing on median or average performance metrics is misleading and advocates for analyzing the long-tail of data to improve user experience.
A summary of key talks from Day 2 of the Delta V Conference, focusing on web performance metrics and Progressive Web Apps (PWAs).
Highlights from Day 1 of the Delta V conference, covering web performance strategies, metrics, and team structures from Pinterest and other tech talks.
Introducing Guess.js, a toolkit for data-driven user experiences on the web, including predictive pre-fetching and smarter JavaScript bundling.
Summary of a Perfmatters talk on improving mobile web performance at Etsy through techniques like lazy loading and CSS optimization.
Notes from a Pinterest performance team talk on building a dedicated team, custom metrics, regression fighting, and optimization strategies.
Revisits the 'compressive images' technique for responsive web design, analyzing its modern relevance, performance trade-offs, and memory impact.
An analysis of Google AMP's performance, examining its speed in search results, as a standalone framework, and compared to canonical pages.
A guide to implementing responsive images for web performance, covering mindset, techniques, and calculations for optimal image delivery.
A critical analysis of Google's AMP project, focusing on its incentives, performance promises, and the recent AMP Stories announcement.
A case study on optimizing complex SVG illustrations for performance and accessibility by using inline SVG techniques.
The author shares their favorite books of 2017, focusing on design systems, web performance, and user experience.
A technique to reduce image file size by lowering contrast in the source image and restoring it with CSS filters, improving web performance.
Discusses the challenges of achieving 120fps on the web, analyzing performance bottlenecks and best practices for smooth animations.
A guide to web performance fundamentals, covering mindset, HTML rendering, and practical optimization techniques for developers.
A critical analysis of Google AMP, focusing on its SEO incentives and impact on web performance and publisher adoption.
The author discusses their experience being interviewed on the Perfbytes podcast about the Visually Complete metric at a performance conference.
A developer discusses implementing the responsive images spec in Stitcher, focusing on challenges of image downscaling and integration.