RendyJS fixes the problem where AI engines (like ChatGPT) can't read websites built heavily with JavaScript. It converts the dynamic content into a static, readable format, so your full text is instantly visible and citable as a source. Therefore, if your JavaScript-heavy website is already optimized for AEO but bots cannot access it, prerendering will increase your chances of being cited.

Yes, the traditional search and the new AI search benefit from dynamic rendering differently.

For Google Search (SEO), dynamic rendering is a safety and speed trick: it ensures Google can crawl faster and more accurately index JavaScript content. Although Google can execute JavaScript, some features may still be too advanced for it and not be visible. With dynamic rendering, we provided the full content without the necessity to execute JavaScript.

For AI Engines (AEO), it's a visibility requirement: since AI crawlers ignore JavaScript, dynamic rendering is the only way your website content can be read and cited in their answers.

If ChaGPT says it cannot access your website, there are two possible reasons:

1. the website blocked it: Your robots.txt file rules block the ChatGPT crawler (GPTBot) from reviewing your content.

2. ChatGPT can't see your content: Your website is built with JavaScript and the AI crawler cannot execute it, so it sees an empty page.

To ensure AI can see your JavaScript-heavy e-commerce product pages, you need dynamic rendering, and RendyJS is a specialized tool for this.

RendyJS works by creating and storing HTML caches of your pages for AI crawlers. You can customize the refresh schedule of the page cache to match your site's needs. The key benefit is that you can link the cache updates directly to your product catalog. So, if only a few product prices change daily, RendyJS refreshes just those specific pages, keeping the page’s data up-to-date. Meanwhile, the rest of the site can have a slower refresh cycle (like every 7 or 14 days), saving resources while guaranteeing AI always gets the freshest data for fast-moving items.

Dynamic rendering, when properly implemented, actually helps your SEO by ensuring Google can fully and quickly read your JavaScript-heavy content.

Using a dedicated tool like RendyJS prevents common SEO issues. RendyJS is designed to prevent problems like server overload and ensure Google always receives consistent, high-quality HTML, not an incomplete or error-filled version. This avoids indexation issues and does not interfere with the user experience for real visitors.