Free AI SEO Checker and AI Visibility Audit

Nobody can rank you in ChatGPT the way a search result ranks. What you can do is remove every reason a model would skip you. Each check in the free AI SEO checker maps to one of those reasons.

1. AI crawlers allowed in robots.txt

Your robots.txt file tells bots which pages they may fetch. The checker looks for rules blocking the main AI user agents:

• GPTBot: OpenAI’s crawler for model training
• ChatGPT-User: fetches pages when a ChatGPT user asks about them
• PerplexityBot: Perplexity’s crawler for its answer index
• ClaudeBot: Anthropic’s crawler
• Google-Extended: a control token with no crawler of its own. It governs whether Google may use your content for Gemini training and grounding. It does not affect Google Search, and blocking it does not remove you from AI Overviews, which draw on Google’s Search index.

Many security plugins, hosts and CDN firewall presets block these by default. If they are blocked, those systems cannot read your pages at all, so nothing else on this list matters until it is fixed. Whether you allow training crawlers is a business decision; blocking the user-initiated fetchers usually just removes you from answers.

2. llms.txt present

llms.txt is a proposed standard: a plain-text file at the root of your site that summarizes who you are and links to your most important pages, written for language models. It is not an official requirement, and the major AI companies have not confirmed they rely on it. We check for it because it is cheap to add, harmless, and gives any system that reads it a clean summary instead of a guess.

3. Structured data

Schema markup is code that states facts in a format machines do not have to interpret. The checker looks for LocalBusiness or Organization markup (your name, address, phone, hours, service area) and FAQPage markup where the page has real questions and answers. Without it, an AI system has to infer what you do and where you do it from prose, and inference is where businesses get misdescribed or left out.

4. Title and meta description

The page title and meta description are often the first text any crawler reads. The check confirms both exist, are not duplicated across pages, and say plainly what the business does and where. “Home” as a page title tells a model nothing.

5. A quotable answer near the top

AI systems quote self-contained passages. The checker looks for a short, direct statement in the first part of the page: what you do, for whom, where. A direct answer under a clear heading is easier for an AI system to quote than a long introduction. We explain this in more depth in our guide to getting recommended by ChatGPT and AI search.

6. Named business and real address (NAP)

NAP means name, address and phone. The check confirms the page shows a real business name and contact details that a model can match against your Google Business Profile, directories and review sites. Consistent NAP across the web is how systems decide that the business on your website is the same business customers review elsewhere.

7. HTTPS

A site without a valid certificate is flagged as insecure by browsers and treated as lower quality by crawlers. It is also the easiest fix on the list, and most hosts provide certificates free.

The checker tests what can be tested from one page. Answer engine optimization (AEO) is the ongoing work behind it: rewriting service pages into liftable answers, schema across the whole site, Google Business Profile accuracy, and earning the third-party mentions that AI answers cite. Our AI SEO service runs this alongside local SEO, because the same signals win both.

We do not promise placement in any AI answer. Nobody controls what a model says, and anyone guaranteeing it is guessing. What we do promise is a site that passes every check here, a monthly manual test of the questions your customers ask, and a plain-English record of which businesses and sources those answers name.