Tim Kadlec helps organizations build faster, more effective websites through sustainable web performance practices. He writes about performance culture, metrics, and real-world optimization strategies.
237 articles from this blog
A discussion on CSS specificity and the cascade, sparked by a Twitter poll, highlighting the importance of fundamental CSS knowledge.
Explains Chrome's NOSCRIPT intervention, which disables JavaScript on slow networks, and details how to test its behavior.
Explores the unintended negative consequences of HTTPS on local caching servers in low-bandwidth, high-latency environments like Uganda.
Explains why focusing on median or average performance metrics is misleading and advocates for analyzing the long-tail of data to improve user experience.
Analysis of Apple Watch's new web content support, detailing WebKit optimizations and developer meta tags for watch-specific layouts.
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 web developer reflects on a tech ethics conference panel and debates the controversial idea of requiring professional licenses for web developers.
A developer shares practical tips for running effective technical workshops, focusing on attendee-driven content and modular material.
A critical analysis of Google's AMP project, focusing on its incentives, performance promises, and the recent AMP Stories announcement.
A developer details creating a custom bookmarklet to save links and quotes directly to their Hugo site via the GitHub API and Netlify.
A review of 'Technically Wrong', a book critiquing tech industry biases and the human impact of algorithmic decisions.
A review of a book on designing effective UI animation, covering its role in branding, performance, and accessibility.
A developer shares their experience migrating from Jekyll to the Hugo static site generator and Netlify hosting, highlighting Hugo's speed and content type features.
A review of 'Inclusive Design Patterns', a book teaching developers how to build accessibility and inclusivity into web applications from the start.
A reflection on teaching basic cryptography to children, highlighting the importance of usable security through historical ciphers like the rail fence and Caesar cipher.
A critical analysis of Google AMP, focusing on its SEO incentives and impact on web performance and publisher adoption.
Explores how developer biases impact software design, using online anonymity debates to argue for inclusive, socially-aware system architecture.
