Corbelix
Free tool

How ready is your site for AI search?

ChatGPT, Perplexity, and Google AI Overviews decide who gets cited. Run the free 60-second check and see what is blocking you.

What the grader checks

Twenty checks, five categories, 100 points

The grader scores the technical signals that decide whether AI engines can read and cite your site. No AI APIs, just direct analysis of your pages.

  • AI crawler access

    Whether robots.txt lets GPTBot, ClaudeBot, PerplexityBot, Google-Extended, and Bingbot read your site at all.

  • Machine-readable signals

    llms.txt and JSON-LD structured data that tell AI engines what your business is.

  • Content structure

    One clear H1, question-style headings, lists, and clean meta tags that make content easy to extract.

  • Citability

    Numbers, freshness, author and entity signals, and sourced links that make you safe to quote.

  • Renderability

    Whether your content is in the raw HTML, since most AI crawlers do not run JavaScript.

Background

What is AEO, and why does it matter now?

Answer engine optimization (AEO) is the practice of making your site easy for AI answer engines to read, understand, and cite. Buyers increasingly ask an AI for a shortlist before they visit any website, so if these engines cannot read you, you are invisible at the exact moment a decision is forming.

Corbelix builds done-for-you SEO and AI search visibility for B2B companies. This grader is the same first-pass audit we run before any engagement, made free and public.

FAQ

Questions about AI search readiness

What is AEO (answer engine optimization)?

AEO is the practice of making your website easy for AI answer engines like ChatGPT, Perplexity, and Google AI Overviews to read, understand, and cite. Where SEO aims to rank a page, AEO aims to get your brand included in the generated answer itself.

How does the AEO Readiness Grader work?

You enter a URL and the grader fetches your homepage, robots.txt, llms.txt, and sitemap, then runs 20 checks across 5 categories worth 100 points. It uses no AI APIs, just direct fetching and parsing, so results are consistent and fast.

Why can't AI engines read some websites?

The two most common reasons are a robots.txt file that blocks AI crawlers, and content that only appears after JavaScript runs. Many AI crawlers do not execute JavaScript, so a site that looks full in a browser can look nearly empty to them.

Is AEO the same as SEO?

They overlap but are not the same. Strong SEO helps, because the pages that rank well are often the pages AI engines read. AEO adds a focus on structured data, machine-readable files, clear answers, and citability so engines will quote you.

How do I improve my AEO score?

Start with the highest-impact fixes the grader shows: unblock AI crawlers in robots.txt, server-render your key content, add JSON-LD and an llms.txt file, and structure pages with one H1 and question-style headings.

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Put this grader on your site

Paste this snippet anywhere you want the grader to appear. It loads in an iframe and keeps the attribution line.

<iframe src="https://www.corbelix.com/grader/embed"
  title="AEO Readiness Grader by Corbelix"
  style="width:100%;border:0;min-height:560px;display:block;"
  loading="lazy"></iframe>
<p style="margin:6px 0 0;font-size:13px;text-align:center;">Powered by
  <a href="https://www.corbelix.com/grader" target="_blank" rel="noopener">Corbelix AEO Grader</a></p>