7 Fresh Links on Performance For March 2022

Here are some noteworthy articles on web performance I've recently discovered:

• Icon Migration Strategies: From Fonts to SVG: Erwin Hofman details his shift from icon fonts to SVGs using the <use></use> technique, highlighting the advantages of this approach. I still prefer embedding SVGs directly into HTML – it's simple and effective.

• Boosting Next.js Performance: Ben Schwarz explores how to optimize Next.js applications beyond the framework's built-in capabilities, focusing on techniques like lazy loading, script deferral, and image optimization.

• Redirect Liquidation: A Faster Approach: Tim Vereecke introduces a clever technique to improve redirect performance by dynamically loading new content and using history.replaceState. However, he cautions against using this method for bots.

• Efficient A/B Testing with Cloudflare Workers: Philip Walton demonstrates how Cloudflare Workers enable performant A/B testing on static sites by manipulating HTML before it reaches the browser, similar to Service Workers but with edge-based processing.

• A Unified Theory of Web Performance: Alex Russell tackles the challenge of defining web performance, moving beyond specific metrics to explore guiding principles and practical application.

• WebPageTest's Revamped UI: The updated WebPageTest interface is a welcome improvement, offering a more user-friendly experience for performance testing.

• Caching Header Best Practices: Simon Hearne provides a comprehensive guide to caching headers, emphasizing their crucial role in preventing unnecessary file re-downloads and optimizing performance. This remains a fundamental aspect of web performance optimization.

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