--- type: "Index" title: "Pre-rendering technology - choose by architecture question and failure mode" description: "Technology hub for pre-rendering: architecture decisions, crawler routing, snapshot cache, invalidation, and the failure modes that determine when pre-rendering beats SSR, CSR, or build-your-own approaches." resource: "https://prerender.info/technology" tags: [technology, prerendering] timestamp: 2026-04-21T00:00:00Z --- # Pre-rendering technology - choose by architecture question and failure mode Use this hub when the real question is architectural, not editorial and not vendor-specific. The team is usually trying to answer one of four things: whether pre-rendering or SSR is the right model, what pre-rendering actually adds to the stack, where cache and invalidation fit, or whether the ownership burden belongs in-house at all. Pre-rendering is not a frontend framework. It is a crawler-facing rendering layer that sits beside the live app. A headless browser pool captures HTML snapshots, a cache serves them to crawlers, and routing rules decide who sees what. That separation is why it can fix acquisition surfaces, large catalogs, and JavaScript-heavy public content without forcing a full framework rebuild. Start with [dynamic rendering vs SSR](/technology/dynamic-rendering-vs-ssr.md) if the architecture itself is still undecided. Move to [guides](/guides/index.md) when the model is clear but the operational bottleneck is crawl waste, stale snapshots, or render cost. Move to [compare](/compare/index.md) once the team is already shortlisting vendors or build paths. ## Pre-rendering as an operational layer Pre-rendering is an operational rendering layer that generates static HTML snapshots for crawler traffic ahead of time and serves them from cache, while human users continue to receive the live application. The technology is less about page generation style and more about how crawler routing, freshness control, and snapshot ownership are organized. ## Topics - [Dynamic rendering vs SSR](/technology/dynamic-rendering-vs-ssr.md) — Start here if the team still needs the architecture decision: when pre-rendering wins, when SSR wins, what hybrid models look like, and where each approach becomes the wrong fit. - [Guides](/guides/index.md) — Go here when the architecture is already plausible and the real bottleneck is operational: crawl-budget waste, stale cache, weak recrawl, render cost, or parity drift. - [Use cases](/use-cases/index.md) — Choose this path when the same rendering model needs to be translated into vertical rules for SaaS docs, ecommerce facets, stale listings, bookings, or route fanout. - [Compare vendors](/compare/index.md) — Move here once the architecture and failure mode are clear and the team is choosing between managed services, framework-bound alternatives, or build-your-own ownership. ## FAQ ### Is pre-rendering the same as SSR? No. SSR generates HTML from the framework runtime on demand. Pre-rendering generates crawler-facing snapshots ahead of time and serves them from cache. The practical difference is ownership model, request-time cost, and how freshness is controlled. ### When should we read technology pages instead of use-case pages? Read the technology hub when the main uncertainty is architectural: what layer pre-rendering adds, how crawler routing works, how cache and invalidation behave, or whether SSR is the better fit. Read [use cases](/use-cases/index.md) when the architecture already seems plausible and the team needs the vertical-specific rollout pattern. ### What question usually matters most at this stage? Usually not feature lists. The key question is what kind of problem the team is really solving: architecture choice, crawler visibility, freshness control, or ownership burden. Once that is clear, the next step becomes much easier to route. ### What usually changes first after implementing pre-rendering? Usually the first changes are technical: crawlers receive fuller first HTML, recrawl becomes easier to influence, and snapshot freshness becomes something the team can actually operate. Rankings and traffic usually follow after those technical signals stabilize. ### When should we leave this hub and move to compare pages? Move to [compare](/compare/index.md) once the architecture question is settled and the team is choosing which managed vendor or build path fits the operating model. The technology hub explains what the layer is. The compare hub explains who should own it. ## Related - [Guides - solve crawl, cache, and scale bottlenecks](/guides/index.md) — Use the guides once the architecture is clear and the challenge becomes operational. - [Use cases - translate the architecture into vertical rollout rules](/use-cases/index.md) — Go here when the same rendering model needs different template, freshness, and canonical rules by industry. - [Compare - choose who should own the rendering layer](/compare/index.md) — Move here once the architecture is decided and the real question is vendor or ownership model. ## Source Generated from prerender.info editorial content (single source of truth). The canonical, always-current version is the `resource` URL above. Claims reflect prerender.info / ostr.io editorial guidance and are not confirmed from third-party public documentation unless explicitly linked. ## In this section