AI search · GEO & AEO

AI SEO Checker

The AI SEO Checker tests whether a page can be found, read and quoted by AI search — ChatGPT, Perplexity, Gemini and Google AI Overviews. It checks crawler access, answer-ready content, trust signals and snippet basics, then gives the page a readiness score from 0 to 100 with the most important fixes listed first.

Paste any URL. The page is read the way most AI crawlers read it — as raw HTML, without running JavaScript — together with the site's robots.txt and llms.txt.

FreeNo signupChecks the live pageUpdated October 2026

AI SEO Checker

Our server fetches the public page you name and keeps no copy of it.

How it works

How to use it

01
Enter the page URL
Paste the address of the page you want AI answers to quote: an article, a product page or your homepage. The https:// part is optional.
02
Read the score and the verdict
85 or more means ready, 60–84 needs work, under 60 means not ready. Blockers cap the score: an error page or an empty JavaScript shell can't score above 40, however tidy its tags are.
03
Fix the top items first
"Fix these first" ranks problems by how much each one costs the score and says exactly what to change. Links open the specialised tool for a closer look.
04
Re-check once the changes are live
The tool fetches the live page on every run, so you can confirm a fix as soon as it's published.

Honest notes

What the score means — and what it doesn't

A high score is not a promise of citations. It means the page clears the technical and structural bar answer engines are known to rely on; which sources an engine actually quotes depends on the question, the competition and how well each page answers it.

The page is read without running JavaScript, the way most AI crawlers read it. Googlebot does render JavaScript, so text added by scripts can still count in Google while staying invisible to the crawlers behind ChatGPT, Claude and Perplexity.

It checks one page, not the whole site, and it can't see what only the engines know: whether a crawler actually visited, where you rank, or whether you're already cited. robots.txt results describe what the file asks crawlers to do, not what a bot did.

Our server fetches the public page, the site's robots.txt and llms.txt, returns the findings and keeps no copy.

Seonix does this on autopilot

One page is a spot check. Seonix watches the whole site.

The free Seonix site audit looks for the same blockers across your site — AI crawlers blocked in robots.txt, JavaScript-only pages, restrictive AI directives, invalid structured data, a missing llms.txt — alongside SEO, technical and speed checks. Then Seonix finds the questions your buyers ask, publishes articles that answer them in 50+ languages, and tracks where your brand appears in AI answers.

Analyze my site free

For your stack

SEO on autopilot for the site you have

Seonix researches, writes and publishes articles — and keeps the technical side in check — wherever your site lives.

WordPress sites

The free Seonix plugin connects in one click: articles publish as native posts, and SEO fixes and llms.txt are handled for you.

WordPress SEO automation

SaaS products

Your AI coding agent connects your app to Seonix from one prompt; keyword-backed articles then publish to your own domain on schedule.

SaaS SEO on autopilot

Custom-built websites

No WordPress needed: your site exposes one small endpoint and articles arrive as native pages in your own design.

SEO for custom websites

Also onShopify Webflow Wix Ghost

Frequently asked questions

What is AI SEO, and how is GEO different from SEO?

AI SEO, also called generative engine optimization (GEO), is making pages that AI assistants and AI search can find, understand and quote. It builds on classic SEO, which gets pages crawled, indexed and ranked, and adds what answer engines need on top: a direct answer near the top, sections that match real questions, clear authorship, and text that's readable without JavaScript.

Does a high score guarantee ChatGPT or Google will cite my page?

No, and no checker can promise that. The score tells you whether the page is eligible and easy to quote. Engines then choose sources by relevance, authority and how well each page answers the specific question, which is why the content itself matters most.

Why can't AI crawlers see my content?

Most often because the page is rendered in the browser. Most AI crawlers download only the HTML your server sends and don't run JavaScript, so an app that ships an empty <div id="root"> looks blank to them. Server-side rendering, static generation or pre-rendering fixes it. Other common causes are a robots.txt rule, a noindex tag and an error status, and the checker tests all of them.

Should I block GPTBot?

Only if you don't want your content used to train OpenAI's models. GPTBot is a training crawler; blocking it doesn't remove you from ChatGPT search, which fetches pages with OAI-SearchBot. If you want to be cited, keep OAI-SearchBot and ChatGPT-User allowed. The checker reports both.

Is llms.txt worth adding?

It's cheap, so there's little reason not to, but keep expectations modest. llms.txt is a proposed convention, not a standard engines are obliged to honour, and it doesn't make a model cite you. That's why the checker never lowers the score for a missing one: crawler access and clear, server-rendered content matter far more.

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