Frontend Performance — resources
roadmap.sh: https://roadmap.sh/best-practices/frontend-performance
Books
- High Performance Browser Networking (Ilya Grigorik) — free online; the canonical explanation of how the network layer shapes page load.
- Web Performance in Action (Jeremy Wagner) — hands-on techniques for images, fonts, CSS, and JS delivery.
- Responsible JavaScript (Jeremy Wagner, A Book Apart) — how to ship less JS and keep the main thread responsive.
- Designing for Performance (Lara Hogan) — free online; building a performance culture and budgets into a team.
Courses / practice
- web.dev — Performance — Google’s authoritative guides on Core Web Vitals and optimization.
- MDN — Web Performance — reference docs on the critical rendering path, metrics, and APIs.
- WebPageTest — deep, waterfall-level performance analysis from real browsers and locations.
- PageSpeed Insights — run Lighthouse plus real-world field data on any URL.