--- title: "Streaming SSR" description: "Stream head tags as Suspense boundaries resolve during React SSR" canonical_url: "https://unhead.unjs.io/docs/react/head/guides/core-concepts/streaming" last_updated: "2026-06-30T06:54:08.181Z" --- Standard SSR waits for everything to render before sending HTML. Streaming sends the document shell immediately, then streams content as Suspense boundaries resolve. The problem: components inside `` using `useHead()` set head tags *after* the initial render. Without streaming support, those tags never reach the client's ``. Unhead's streaming integration solves this by injecting `