How the scan works

1. Enter your domain. The scan fetches the front page, robots.txt, sitemap and the machine-facing files – exactly as an AI crawler would.
2. 33 checks across six layers – from access and legibility to identity, clarity, documentation and signal.
3. The result is instant: score, concrete gaps with points – and a language model's description of your site based on the text a crawler can actually see.

What does the scan check?

Access

Can AI crawlers get in at all? Robots.txt, AI bot rules, redirects and an honest 404 page.

Legibility

Is the content present as text in the HTML – or hidden behind JavaScript, which most AI crawlers don't run?

Identity

Can machines see who is behind the site? Structured data for organisation, logo and contact.

Clarity

Titles, descriptions and headings that say something concrete – on every single page.

Evidence

Machine-facing files like llms.txt and markdown versions that give AI a clean text trail.

Signal

Sitemap, canonical and language markup – the small signals that decide whether your content is found and understood correctly.

What is AI readability?

AI readability is how easily machines can read and understand your website. When ChatGPT, Claude or Perplexity answers a question, the answer is built on what their crawlers could fetch and interpret – not on what the page looks like in a browser.

Classic SEO is about ranking in search results. AI readability is about being understood and cited in answers. A site can rank fine on Google and still be invisible to an AI crawler that does not run JavaScript and does not guess who is behind the site. If you want help with the gaps, LLMO – AI readability as a service is the natural next step.

Frequently asked questions

What is llms.txt?

A text file at the root of your domain that tells language models what your site is about and where the key content lives. Think of it as the opposite of robots.txt: not "stay away", but "start here".

Why can't AI read my site?

The most common causes: content rendered with JavaScript, AI bots blocked in robots.txt, or missing structured data so the machine can't tell who is behind the site. The scan shows exactly which gaps your site has.

Is the checker free?

Yes. No signup, no email required. You see the full result instantly – all 33 checks, nothing blurred.

Is this SEO?

Related, but not the same. SEO is about ranking in search results – AI readability is about being understood and cited in AI answers. A good website checker today should cover both.