Prerender
JavaScript-heavy sites hide content from bots and crawlers. Your AI agent uses Prerender.io to fetch fully rendered HTML snapshots of any URL, making page content accessible for SEO audits, content extraction, and troubleshooting, all triggered by a simple question in chat.
Your AI agent calls Prerender.io to generate static HTML snapshots of dynamic pages, enabling SEO diagnostics, content checks, and crawler-perspective analysis during live conversations.
Prerender
See how marketing and development teams use AI agents with Prerender.io to audit JavaScript pages, verify crawler access, and troubleshoot indexing issues.
An SEO manager suspects that a key product page built in React is not showing up in search results. They ask the AI Agent to check it. The agent sends the URL to Prerender.io, retrieves the rendered HTML, and confirms that the page title, meta description, and H1 tag are all present. The page is rendering correctly for bots. The issue lies elsewhere, saving hours of misdiagnosis.
Before launching a campaign, your marketing team wants to make sure shared links display correctly on LinkedIn and Twitter. The AI Agent fetches the prerendered HTML of the landing page, extracts the Open Graph and Twitter Card meta tags, and confirms they are populated with the right title, description, and image URL. The team launches confidently.
Google Search Console flags several pages as having crawling issues. A developer asks the AI Agent to render one of the flagged URLs. The agent retrieves the Prerender.io snapshot and discovers the page content loads behind a client-side authentication gate that blocks crawlers. The developer fixes the issue and resubmits the pages for indexing.
Prerender
FAQs
The agent sends a URL to Prerender.io's API, which executes the page's JavaScript in a headless browser and returns the fully rendered HTML. This is the same content search engine crawlers would receive. The agent then analyzes the HTML for meta tags, content, and structured data.
Yes. Prerender.io supports React, Angular, Vue.js, Next.js, Nuxt, Ember, and any other JavaScript framework. It executes the JavaScript fully before capturing the HTML snapshot. The framework used does not affect the rendering quality.
The API endpoint fetches a prerendered snapshot of any URL you submit. However, for best results, pages should be accessible to Prerender.io's rendering servers. If your site has IP restrictions or authentication gates, you may need to whitelist Prerender.io's IP ranges.
No. The rendered HTML is fetched live from Prerender.io during the conversation and used to answer the current query. Tars does not cache or store page snapshots. Each request generates a fresh render based on the page's current state.
Prerender.io delivers pages in approximately 0.03 seconds on average for cached pages. First-time renders may take a few seconds depending on page complexity and JavaScript execution time. The agent waits for the full render before presenting results.
Yes. The agent fetches the prerendered HTML and can inspect it for JSON-LD structured data, Open Graph tags, and other schema markup. This is especially valuable as AI search engines like ChatGPT and Perplexity rely on clean HTML and structured data to surface content.
Google's URL Inspection Tool only works for verified sites in Search Console and is limited in frequency. With Tars and Prerender.io, you can render any URL, anytime, from any conversation channel. It is faster for spot-checking multiple pages and does not require Search Console access.
The integration works with any Prerender.io plan that provides API access and a token. Your plan's page render quota determines how many pages the agent can fetch per month. The agent makes one API call per URL request.
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