Pre-render: Fast, SEO-Friendly Websites at Scale

Modern websites built with JavaScript frameworks often suffer in search visibility and load speed. Search bots struggle to parse client-rendered pages, which hurts indexability and delays time-to-rank, especially for e-commerce and content-heavy websites.

Harper Pre-render solves this by rendering HTML pages ahead of time, storing them in a high-performance datastore, and serving them instantly from the edge.

Why It Matters

Client-side rendering slows everything down—for bots, for users, and for your business. Pages take too long to load, search engines see incomplete content, and campaigns miss their moment.

With Harper Prerender:

• HTML is rendered once, not on every request
• Pages are served as compressed snapshots, not slow JavaScript bundles
• Search bots get clean, complete content, fast, stretching crawl budgets up to 4 times further while saving money by offloading their requests from origin systems.
• Users see instant page loads, even on first visit. (Less network and server latency)

‍

How It Works

Harper uses a headless Chrome browser to pre-render HTML pages based on sitemap data or custom URL submissions. The content is compressed and stored in Harper, then delivered in milliseconds from distributed nodes. Bot traffic is routed separately for maximum crawl efficiency. You can render ad hoc, on a schedule, or via API.

‍

Use It For

• Search Engine Bot Optimization: Ensure crawlers see full content, improving rank and crawl rate
• E-commerce Collections & Product Pages: Speed up first load and increase conversions
• Site Backup: Keep product pages live and customers buying even when origin systems are down.
• Increase Crawl Rate: Faster pages means that search crawlers can crawl up to 4 times as many pages in the same time.
• Cut Bot-Driven Costs: Pre-rendered pages shield your backend from heavy bot traffic, reducing compute and bandwidth costs on usage-based platforms like Vercel, Fly.io, and AWS.

Ready When You Are

Harper Pre-render is built for massive scale. Whether or not you have a sitemap, Harper offers a white-glove pilot tailored to your site, handling setup, URL targeting, and edge delivery. Contact Harper to see it in action and kick off a free, custom proof of concept today.