Browser

• Jun 5, 2026 What Happens When You Type a URL and Press Enter

  A technically precise, end-to-end walkthrough of every major step between pressing Enter and pixels appearing on screen — from URL parsing and DNS to TCP, TLS 1.3, HTTP, CDN routing, and the browser's critical rendering path.

• Jun 3, 2026 The Browser as a Platform

  How the thing on the other end of your API actually works — the DOM and the rendering pipeline (parse, style, layout, paint, composite), the event loop and the microtask queue, what reflow and repaint actually cost, the Web Platform APIs worth knowing, and the security model (same-origin, CORS, CSP). The mental model that makes frontend performance and bugs make sense.