Comparison
Adobe Experience Manager manages enterprise content, assets, and multi-site publishing. It does not render JavaScript for crawlers. On the other hand, Prerender.io prerenders AEM SPA content into HTML, helping search engines and AI crawlers find and index it without a custom SSR build.
Explore Prerender.io for AEM SEO and JavaScript rendering.
Adobe Experience Manager (AEM) is a platform designed for managing complex enterprise websites, digital assets, and multi-site publishing. However, when your site is built on AEM using JavaScript frameworks like React or Angular, it can cause a major search issue: AEM often serves search bots a blank page instead of your actual content.
Google can process JavaScript to some extent, whereas many AI crawlers, such as GPTBot, ClaudeBot, and PerplexityBot, do not execute it. This can leave important AEM SEO content, including product details, links, metadata, and structured data, unavailable to them.
Prerender.io delivers index-ready pages to web crawlers without changing a single thing about how human users interact with your AEM site.
For AEM teams, the practical comparison is between Prerender.io and Adobe I/O Runtime, with a custom SSR build.
Adobe I/O Runtime is the serverless layer AEM teams can use to run a custom SSR application. It can host your renderer, but it does not provide the renderer itself.
In practice, to add SSR to an AEM SPA, your team needs to build and maintain:
That can make sense when you are rebuilding your front-end architecture for SSR. But if the goal is to improve crawler access for an existing website built on Adobe Experience Manager, it creates another application for your team to own.
Prerender.io handles all the technical burden. It renders at the CDN, reverse-proxy, or web-server layer, without a separate SSR application.
For AEM 6.5, teams can self-host a renderer, but the maintenance requirement is the same. For new AEM builds, Adobe Edge Functions is another option, though it also requires custom code and operational ownership.
Prerender.io handles the crawler-facing rendering work for your AEM pages. It renders your JavaScript pages, caches the HTML, and serves that HTML to both traditional and AI crawlers. Your AEM content workflow and visitor experience remain unchanged.
With Prerender.io, crawlers receive the complete HTML version, including page content, internal links, metadata, and structured data.
There is no separate Node.js renderer to build or maintain, and no need to rewrite your React AEM or Angular AEM front end.
AEM sites often span countries, languages, brands, and environments. A custom SSR build adds another application to manage across that estate.
Prerender.io can support all configured domains and URLs through one platform. This makes it easier to apply a consistent approach to AEM SEO as you add new markets or launch new pages.
When AEM content changes, crawler-facing HTML needs to stay current too. Prerender.io lets you set cache expiration rules, recache individual URLs, and refresh pages after a deployment.
This gives teams control over freshness without manually maintaining a rendering infrastructure.
Prerender.io | Adobe I/O Runtime + Custom SSR | |
|---|---|---|
Main purpose | Renders JavaScript pages and delivers the pre-rendered version from AEM to web crawlers | Extends AEM with custom code to render JavaScript on the server before serving crawlers |
What crawlers receive | Fully rendered HTML | Server-rendered HTML after your team builds the renderer |
Rendering code | Managed by Prerender.io | Built and maintained by your team |
Front-end rewrite | Not required | Usually required, plus ongoing parity work |
AEM integration | CDN, reverse proxy, Apache, or Dispatcher layer | AEM configuration plus custom integration |
Ongoing maintenance | Managed service | Renderer updates with front-end changes |
Multi-site support | One platform across configured domains and URLs | More deployment and testing work as the estate grows |
Cache controls | Built-in cache, recache, and expiration controls | Must be built into the custom solution |
Best fit | Existing AEM SPAs that need crawler-readable HTML | Teams making a broader SSR architecture investment |
Adobe I/O Runtime pricing depends on your Adobe agreement. More importantly, it does not include the work required to build and maintain SSR.
With a custom AEM rendering solution, the total cost includes developer time for the renderer, AEM integration, testing, deployment, monitoring, and ongoing maintenance.
Prerender.io pricing is based on rendered pages and cache refreshes, designed to fit growing setups as well as enterprise-scale websites. View Prerender.io pricing.
Prerender.io | Adobe I/O Runtime + Custom SSR | |
|---|---|---|
Starting cost | From $59/month
| Depends on your Adobe agreement |
Initial setup | Configuration-led | Custom development project |
Ongoing cost | Plan based on renders and cache refreshes | Infrastructure plus internal development time |
Maintenance | Managed by Prerender.io | Managed by your team |
Free trial | 30 days | Not applicable |
AI visibility begins with crawler access. If a crawler cannot read your page content, it cannot use that content in search results or AI-generated answers.
Prerender.io helps make JavaScript content available to the crawlers that matter to your business. AI Insights can help teams identify crawler-access issues before they affect visibility.
Rendering JavaScript requires more work from crawlers than reading HTML. By serving crawler-ready HTML, Prerender.io helps search engines access content and follow internal links without spending much on your crawl budget.
This is especially useful for large AEM sites with many product, category, or location pages.
Use cache controls to match your AEM publishing schedule. Set an expiration period for your rendered pages, refresh individual URLs when needed, or automate recaching after updates.
This helps crawlers receive current content without turning cache management into another engineering task.
Prerender.io supports multi-regional, JavaScript-heavy sites that need to be found across search, AI, and social platforms. See how On uses Prerender.io across a global ecommerce estate.
Your content is already in AEM. Prerender.io helps make that content available to search engines and AI crawlers without requiring a custom SSR application.
30-day free trial. Talk to us about enterprise AEM deployments.
Prerender.io does not replace Adobe Experience Manager. AEM manages content, assets, publishing workflows, and digital experiences. Prerender.io supports AEM SEO by making JavaScript content from AEM easier for search engines and AI crawlers to read.
Adobe I/O Runtime is not required when you use Prerender.io for AEM rendering. Adobe I/O Runtime is relevant when your team chooses to build and host a custom SSR application. Prerender.io removes that requirement by handling crawler-facing JavaScript rendering as a managed service.
Prerender.io works with AEM Dispatcher because Dispatcher runs with Apache HTTP Server. You can configure Prerender.io at the Apache layer, or at your CDN if your AEM site is already behind Cloudflare, Akamai, Fastly, or CloudFront. Explore Prerender.io integration options.
Prerender.io works with both AEM 6.5 and AEM as a Cloud Service. It sits at the CDN, reverse-proxy, or web-server layer, so the Prerender.io integration does not depend on which AEM version you use.
AEM 6.5 and AEM as a Cloud Service have different options for teams building custom SSR, but Prerender.io provides the same JavaScript rendering approach for either AEM setup.
Prerender.io improves crawler access to JavaScript content; it does not replace Core Web Vitals optimization. Your team should still optimize JavaScript bundles, images, loading behavior, and interactions to improve user-facing performance.
Prerender.io complements that work by helping search engines and AI crawlers access the content behind your AEM React or Angular application.
