AI visibility

Render Visibility Checker

See how much of your page's content exists in the raw HTML that non-JavaScript AI crawlers receive.

How it works

Using the Render Visibility Checker

  1. Paste the full URL you want to check above.
  2. CrawlVitals fetches the live page and reads its real response — headers, HTML, metadata, and signals — exactly as a crawler would.
  3. You get a plain-English result showing what passed, what needs attention, and the specific fix.
Why it matters

AI visibility in plain English

AI answer engines like ChatGPT, Claude, Perplexity, and Google's AI overviews read pages differently than classic search. Clear entities, sources, and machine-readable signals decide whether you get cited.

The Render Visibility Checker focuses on one job. See how much of your page's content exists in the raw HTML that non-JavaScript AI crawlers receive. That keeps the check fast and unambiguous, so you can fix the issue and move on instead of reading a generic SEO report.

Good to know: Lite check based on initial HTML. The full bot-vs-rendered diff (real headless browser) runs in the member portal.

The checks behind this tool follow published guidance from the llms.txt spec.

Free, no signup

Runs in your browser. Nothing to install and no account required to get a result.

Same engine as the app

Built on the same rules the full CrawlVitals scanner uses across crawl, indexability, GEO, and AI-readiness.

Built to act on

Every result points at the specific fix, so it becomes a change you can ship — not just a number.

FAQ

Common questions

Is the Render Visibility Checker really free?

Yes — it runs with no signup or payment. When you need scheduled scans, full-site coverage, and monitoring over time, the CrawlVitals app picks up where the free tools stop.

Is this a real check or a guess?

It's a real check. The Render Visibility Checker fetches the live page and reads its real response and applies CrawlVitals' actual rules — not a canned template.

Will it guarantee indexing or rankings?

No tool can. The Render Visibility Checker helps you remove the technical reasons a page gets ignored; search engines and AI systems still decide what to index, rank, or cite.

What do I do with the result?

Apply the fix it points to, then re-check. For the full picture, run a complete site scan or explore the other free tools.