// the find
thedaviddias/Front-End-Performance-Checklist
🎮 The only Front-End Performance Checklist that runs faster than the others
A markdown checklist covering front-end performance best practices across HTML, CSS, fonts, images, JavaScript, and server configuration. It's aimed at developers who want a structured audit reference rather than something automated. Essentially a well-organized reading list with priority labels.
Priority levels (high/medium/low) on each item are genuinely useful for triaging what to fix first on a real project. The explanations include both why something matters and concrete how-to steps, not just a bare rule. Tool links are specific and actionable — cssnano, PurgeCSS, Bundlephobia — rather than generic suggestions. Translations into 11+ languages and community contribution infrastructure show this has real adoption and maintenance beyond one person.
The last meaningful update was early 2025 but many recommendations still reference 2018 HTTP Archive data and pre-HTTP/2 concatenation advice that's actively counterproductive today. There's no interactive version, scoring tool, or CI integration — you can't run this against a URL, so it stays a manual checklist forever. Service Worker and PWA coverage is thin given how central those patterns are to modern performance. The CSS concatenation section hedges with 'not always valid for HTTP/2' without ever saying that for most modern stacks, concatenation is simply wrong.