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.
220 articles from this blog
A developer uses a new Shopify Liquid profiler to identify and fix a major performance bottleneck causing slow page rendering times.
The article argues for intentionally adding friction in development workflows to improve code quality and performance, using npm as a key example.
Explains how to use browser Feature Policies like oversized-images and unoptimized-images to catch and prevent common web performance issues.
Analyzes a CSS preload pattern that can block HTML parsing and hurt performance, explaining why it's no longer recommended.
A developer shares personal health habits to illustrate how making good choices easy can be applied to building performant, accessible, and secure software.
Tips for using Google BigQuery's public datasets while managing and minimizing query costs, including using the free tier and setting budgets.
Reflects on the permanence and global considerations of web standards, advocating for careful feature development and platform-native solutions.
A guide to creating a Netlify build plugin that integrates with SpeedCurve for performance testing after each site deploy.
Explores how to use the Save-Data header to optimize web performance without degrading user experience, with practical examples.
Discusses the importance and adoption of the Save-Data HTTP header for reducing web page weight, with real-world usage statistics.
A developer discusses the importance of simple, efficient tooling and workflows in modern web development stacks (React/Vue, Node, webpack) for better team productivity and onboarding.
Explores key traits of a strong web performance culture in tech organizations, based on industry experience and Google I/O insights.
Examines the common fallacy that new network generations (3G, 4G, 5G) instantly solve performance issues, highlighting slow, uneven rollouts and marketing hype.
Explains Google Chrome's new Lite Pages feature, its relation to Data Saver, and how it optimizes web pages on slow connections, including HTTPS.
A guide to creating effective performance budgets for web development, focusing on concrete metrics and team integration.
A review of the book 'Mismatch', which provides a framework for designing inclusive and accessible technology experiences.
Discusses proposals to limit JavaScript and other resources in browsers to improve web performance, comparing WebKit's idea to Chrome's Never-Slow Mode.
Explores the ethical implications of poor web performance, arguing it creates digital exclusion for users with low-end devices or slow connections.
A guide to creating an Alfred workflow for quickly running performance tests on WebPageTest.org from your desktop.
A web developer critiques Google's dominant influence on the web, discussing the pros and cons of its initiatives like performance ranking and AMP.
