June 22, 2026
Added Cloudflare Telescope — a cross-browser Playwright-based CLI and library for collecting HAR, Web Vitals, resource timing, console logs, screenshots, and filmstrip. Added Paul Calvano's "Introduction to the HTTP Archive" talk from the NY Web Performance Meetup (April 2026) to TALKS.md. Added Terser and SWC to the Minifiers section. Added bundle.js.org to the Bundle Analyzer section. June 8, 2026
Added the 2021 talk "Hacking Web Performance" by Maximiliano Firtman. Added the 2022 article "Cloudflare Pages gets even faster with Early Hints" by Greg Brimble. Added Spotify article "From Development to Real Users: How to Create a Web Performance Story" to the 2022 section. Grouped all talks into year-based sections (2026 → Undated) for easier browsing. Added "Improving game performance on the Web" by Nick Desaulniers from BrazilJS 2015. Added "Desafios práticos de performance Web" by Sérgio Lopes from BrazilJS Conf 2016. Added Sentry article on code rendering virtualization (2024) and Atlassian article on faster builds by removing barrel files (2025). Added Webpack code splitting guide, Adaptive Images, and react-virtualized to the README. Moved Lighthouse Agentic Browsing scoring from README Documentation to ARTICLES.md. Moved Performance Calendar from BLOGS.md into ARTICLES.md. Added two 2025 Performance Calendar articles. Added Lighthouse Agentic Browsing scoring to the Documentation section.