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
Reflection on software quality vs. speed in the AI era, emphasizing engineering and user-centric design.
Blogger temporarily takes site offline due to AI crawlers causing unsustainable traffic and loss of income from book sales.
Analysis of skepticism towards rewriting JavaScript tools in faster languages, focusing on maintainability and accessibility.
A guide to setting clear metrics and measurement strategies before implementing web performance optimizations to ensure measurable impact.
The author launches perfwork.com, a niche job board connecting web performance professionals with hiring companies, built with modern web tech.
Critiques the 'single visionary' myth in tech product development, arguing for collaborative, principle-driven decision-making instead of autocratic design.
Explains why good Core Web Vitals scores don't guarantee a good user experience, arguing performance is about user goals, not just metrics.
Explores differences in how Chrome's FCP and LCP metrics define 'contentful' elements, focusing on image entropy and SVG handling.
A data-driven analysis revisiting the Performance Golden Rule, showing frontend still dominates page load time, with modern data from HTTP Archive.
Web performance expert announces return to consulting, focusing on helping organizations build sustainable performance culture and tools.
Explores the two stages of creativity: imagination and ruthless editing, with a focus on underutilizing team time for innovation.
Discusses the potential for Apple to allow alternative browser engines on iOS, analyzing the impact on browser diversity and competition.
Case study on improving LCP by removing image transitions, resulting in a 6-second performance gain for Case-Mate.
A developer reflects on the value of intentionally using RSS feeds and newsletters for continuous learning and staying informed in the tech industry.
A reflection on AI tools like ChatGPT and Midjourney, agreeing that AI is useful for generating inputs but not client outputs.
Explains how performance metric variability can reveal real website issues like race conditions, not just measurement flaws.
Explores the IndieWeb movement, Mastodon's complexity, and rethinking social media for calmer, owned content.
Case study on YouTube's web optimization using preload and fetchpriority to improve FCP and LCP with a black poster image.
Tribune Publishing disabled Google AMP and saw higher revenue and user control, explaining why moving away from AMP was beneficial.
Summary of a conference talk on HTTP/3, covering its benefits, setup, and performance testing compared to HTTP/2.
