Comparison
If your site uses client-side rendering, key content may be invisible in search results—and now to AI answer engines. Why? Because search engines still struggle to crawl JavaScript-heavy pages.
Tools like JetOctopus vs. Prerender.io address this technical SEO challenge in different ways. JetOctopus is a site crawler and log analyzer, and Prerender.io is the go-to prerendering solution for dynamic content.
JavaScript SEO issues aren’t just bugs—they’re barriers. If search and AI crawlers can’t see your content, your rankings suffer. JetOctopus helps uncover these barriers by identifying technical SEO issues like crawl inefficiencies, duplicate content, and broken meta tags.
On the other hand, Prerender.io doesn’t just identify JavaScript indexing problems—it removes them entirely. By serving prerendered HTML versions of your dynamic pages, Prerender.io makes your content immediately crawlable and indexable for bots, so your content is:
With its new site audit tool, Prerender.io helps you diagnose rendering issues and resolve them in one seamless workflow. Try it for free.
While Prerender.io ensures that search engines can see and index JavaScript-heavy content, JetOctopus identifies the technical SEO issues that block visibility, performance, and rankings. Together, these tools solve different parts of the JavaScript SEO puzzle.
Instead of choosing one tool over the other, using these tools in combination gives you end-to-end control over how your site is rendered, crawled, and indexed.
Prerender.io | JetOctopus | Overview |
|---|---|---|
Tool Explanation | Prerenders dynamic JavaScript into static HTML for search engines. | Crawls and analyzes websites to log technical SEO issues. |
Main Goals | Ensure search engines can index JavaScript-rich content faster, allowing your content to feature in AI platforms. | Identify SEO problems like crawl waste, fake bots, and indexability gaps. |
Best For | SPAs, dynamic content elements , and JS-heavy websites. | Enterprise and high-traffic sites with large URL volumes. |
Distinct Features | Dynamic rendering engine, customizable caching, and scalable rendering pipeline. | Problem-first dashboards, unlimited log analysis, and fast crawling. |
Crawling and Rendering | ||
Crawling Behavior | Serves prerendered HTML to bots like Googlebot to encourage faster crawling. | Crawls millions of URLs with no project or crawl limits. |
IndexingOptimization | Speeds up indexing by making JavaScript content crawlable. | Evaluates indexability using crawl data and logs. |
JavaScript Rendering | Yes, the tool transforms JS into fully rendered, crawlable HTML. | No, the tool only detects JS issues but does not render for bots. |
SEO Auditing | ||
On-page SEO | Yes, includes crawl speed, indexation checks, and Lighthouse metrics. | Yes, audits tags, content issues, and offers prioritized fixes. |
Deep Diagnostics | Checks rendering behavior, crawlability, and bot compatibility. | Full visibility into crawl logs and technical SEO health. |
Additional Insights | Built-in 404 checker, custom cache control, and pre-render status logs. | Internal linking, SERP analysis, and issue alerts. |
Workflow Fit | Solves rendering issues before bots crawl. | Diagnoses crawl behavior after bots land on your site. |
Discover the full range of Prerender.io features.
Prerender.io uses a usage-based pricing model, perfect for sites focused on indexing dynamic content. JetOctopus takes a package-based approach built for scale, combining crawl, log, and data limits in one plan. Here’s how they compare.
Prerender.io | JetOctopus | |
|---|---|---|
Pricing Model | Based on the number of rendered pages per month. | Based on crawl pages, log lines, and integrations. |
Free Plan | Yes, 1,000 renders per month with limited cache freshness. | No free plan available. |
Paid Plans | Starts at $90 per month. Custom pricing available for high volumes and advanced needs. | Starts at $337 per month (billed annually). Enterprise plans with custom capacity. |
Add-Ons | Includes setup packages, dedicated support, enhanced security, and billing support features. | Add components à la carte (e.g., crawl volume, log lines, or integrations). |
Billing Options | Monthly and annual billing available; ACH/PO supported for custom plans. | Annual billing standard; quarterly available upon request. |
Learn more about Prerender.io’s affordable pricing options.
Most AI crawlers still can’t render JavaScript—but Prerender.io makes your content visible to them. It’s a one-step way to get ready for the next wave of SEO and AI-driven discovery.
Search engines prioritize mobile versions of your site, but JavaScript often breaks that experience. Prerender.io ensures your mobile content is fully rendered and crawlable.
You don’t need to change your tech stack. Installed in just three simple steps, Prerender.io fits seamlessly into your existing infrastructure and starts working immediately.
Know exactly what bots see and where they struggle. Prerender.io gives you real-time crawl insights and lets you manage your sitemaps to ensure search engines prioritize your most important content.
Access our comprehensive knowledge base or contact our support team, which specializes in JavaScript SEO and works directly with your developers to resolve rendering and indexing issues fast.
Prerender.io’s free SEO audit goes beyond basic checks to measure what impacts visibility—like delivery speed, indexation status, and crawl efficiency. It shows how your site performs today and reveals what’s possible with data-driven projections.
JetOctopus is a solid choice for diagnosing crawl issues, analyzing logs, and uncovering SEO inefficiencies, but it does not fix JavaScript rendering problems.
If you’re looking for a JetOctopus alternative that goes beyond analysis, Prerender.io is it. While JetOctopus highlights what’s broken, Prerender.io actually solves it—by rendering JavaScript content into static HTML that search engines can crawl and index instantly.
Yes, while Prerender.io doesn’t guarantee rankings, it plays a key role in improving your site’s technical SEO and visibility. Here’s how:
Learn more about Prerender.io’s benefits to your web performance, visibility, and sales.
No, Prerender.io scales from startups to large-scale sites across ecommerce, real estate, SaaS, job boards, and more—anywhere JavaScript drives core content.
Yes, Prerender.io is framework-agnostic and works seamlessly with any JavaScript library or framework, including React, Angular, Vue, and others. It detects when search engine bots request a page and serves them a fully rendered static HTML version, regardless of how your site was built. That means no matter your tech stack, your content is accessible, crawlable, and optimized for search visibility.
