--- type: note kind: Recipe title: 'blocking=render 는 전에만 등록된다 — 뒤에 붙으면 조용한 no-op' tags: ['performance', 'rendering', 'fouc', 'html'] status: release ctime: 2026-06-23 mtime: 2026-09-10 generated: { by: claude/opus-5, at: 2026-09-01T00:00:00Z } verified: { by: claude/opus-5, at: 2026-08-23T00:00:00Z } sources: - id: whatwg-render-blocking resource: https://html.spec.whatwg.org/multipage/dom.html#allows-adding-render-blocking-elements title: "allows adding render-blocking elements — HTML Standard" --- import AutoIframe from '@components/AutoIframe/AutoIframe.astro' **파서를 멈추는 것과 paint를 멈추는 것은 다르다.** 동기 `