Run a single page through the checks that decide whether AI assistants can read, understand and cite your site: AI-crawler access, an llms.txt file, structured data, a clear summary, answer-friendly content, a clean heading and HTTPS. You get a 0–100 AI Readiness score and a prioritized list of exactly what to fix.
⚡ Interactive demo — sample data
AI Readiness score: 62/100 — AI crawlers can reach this sample site and the basics are solid, but missing structured data and llms.txt are capping its AI visibility.
AI crawlers allowed — GPTBot, ClaudeBot, PerplexityBot and Google-Extended can all read the siteLooks good
Clear summary & single H1 — AI has an unambiguous topic and one-line description to quoteLooks good
No structured data — AI has to guess the business's services and factsWarning
No llms.txt — no curated map of the key pages for AI modelsWarning
No question-style / FAQ content — the format AI prefers to cite is missingWarning
HTTPS and 300+ words of content — secure and substantial enough to summarizeLooks good
Run a single page through the checks that decide whether AI assistants can read, understand and cite your site: AI-crawler access, an llms.txt file, structured data, a clear summary, answer-friendly content, a clean heading and HTTPS. You get a 0–100 AI Readiness score and a prioritized list of exactly what to fix.
How it works
Enter your website URL
Paste any page and run the check. We fetch the page, plus your robots.txt and any llms.txt at the domain root — the same files AI crawlers read before they decide what they can use.
We run eight AI-readiness checks
We score whether AI assistants can access your site (robots.txt), whether you publish an llms.txt, whether you have structured data, a clear summary, a single clean H1, answer-friendly content, HTTPS and enough content depth to be worth citing.
Get a 0–100 score and prioritized fixes
Each check passes or fails and rolls into one AI Readiness score. We list exactly what's holding you back — and the specific fix for each — so you know where to start to get found and cited by ChatGPT, Gemini and Perplexity.
What we check
AI crawler access — Reads your robots.txt and checks whether the major AI crawlers — GPTBot, OAI-SearchBot, ClaudeBot, Google-Extended and PerplexityBot — are allowed. If they're blocked, those AI engines literally cannot read or cite your content, no matter how good it is.
llms.txt file — Checks for an llms.txt at your domain root — a plain-text map that points AI models at your most important pages. It's an emerging standard, easy to add, and a clear signal your site is built with AI discovery in mind.
Structured data — Looks for JSON-LD structured data on the page. Schema tells AI exactly who you are, what you offer and the facts about your business, so it can extract and cite you accurately instead of guessing.
Clear summary & heading — Confirms you have a meta description (a ready-made one-line summary AI can quote) and exactly one H1 (an unambiguous main topic). Both make it far easier for an AI to understand and represent the page.
Answer-friendly content — Detects question-style headings and FAQ content — the Q&A format AI engines preferentially pull from when they build an answer. Pages written as direct questions and concise answers get cited far more often.
HTTPS & content depth — Verifies the page is served over HTTPS and has enough substantive content (300+ words) to be worth summarizing. Thin, insecure pages rarely earn a citation in an AI answer.
Common issues we catch
Accidentally blocking AI crawlers in robots.txt — A wildcard Disallow: / from a staging config, or a deliberate block of GPTBot, quietly shuts AI engines out of your whole site. You can publish perfect content and still be invisible in AI answers because the crawler never got in.
No structured data — Without JSON-LD, AI has to infer your business name, services, location and hours from prose — and it gets them wrong. Organization, LocalBusiness and FAQ schema hand AI the facts in a format it can lift verbatim.
No llms.txt — Most sites have no llms.txt, so AI models have no curated guide to what matters on the site. It takes minutes to add and signals that your most important pages should be prioritized.
Prose with no question-and-answer structure — Marketing pages written as flowing paragraphs are hard for AI to quote. AI assistants build answers from clear questions and concise responses, so content without that shape rarely gets cited even when it's accurate.
Missing or weak summaries — No meta description, or multiple H1s, leaves AI without a clean handle on what the page is about. A single clear H1 and a one-line description give the model an unambiguous summary to work from.
Thin content — A page with a couple of sentences gives AI nothing substantial to summarize or cite. Depth — real explanations, specifics and answers to actual questions — is what earns a mention.
Assuming good SEO automatically means good AI readiness — Ranking on Google and being cited by AI overlap but aren't the same. AI weighs crawler access, structured data, llms.txt and answer-friendly formatting more heavily — sites that rank well can still score poorly here.
Where this matters
ChatGPT (OpenAI) — Reads sites via GPTBot, OAI-SearchBot and ChatGPT-User. We confirm these aren't blocked and that your content is structured enough for ChatGPT to understand and cite.
Google AI (Gemini & AI Overviews) — Governed by Google-Extended for AI features. Structured data and clear summaries — both checked here — are exactly what Google's AI uses to build and attribute answers.
Perplexity — Crawls via PerplexityBot and cites sources inline, so crawler access plus answer-friendly, well-structured content directly determines whether you show up as a cited source.
Claude (Anthropic) — Reads sites via ClaudeBot. We verify access and that your content has the clarity and depth a model needs to represent your business accurately.
Frequently asked questions
What does AI readiness actually mean?
It's how well your website is set up to be crawled, understood and cited by AI assistants like ChatGPT, Gemini, Perplexity and Google AI. It combines technical access (can the AI crawlers reach you), machine-readability (structured data, llms.txt, clear summaries) and content format (question-and-answer structure, depth). A high score means AI can find you, understand you and quote you.
How is the AI Readiness score calculated?
We run eight checks — AI crawler access, llms.txt, structured data, a clear summary, a single H1, answer-friendly content, HTTPS and content depth — and score the share that pass out of 100. Each check is a real, fixable signal, so the score maps directly to a to-do list rather than an opaque grade.
Will improving my AI readiness hurt my Google rankings?
No — it generally helps both. Allowing AI crawlers is independent of Googlebot and carries no SEO penalty, and the other improvements (structured data, clear summaries, answer-friendly content, HTTPS, depth) are SEO best practices too. You're optimizing for searchers and answer engines at the same time.
Do I have to let AI crawlers access my site?
It's a strategy choice. Allowing them is what makes you eligible to appear in AI answers and earn AI referral traffic; blocking them keeps your content out of AI systems. There's no ranking penalty either way. This tool flags blocks so the decision is deliberate, not accidental — but if AI visibility is your goal, you want them allowed.
What is llms.txt and do I really need it?
llms.txt is a simple text file at your domain root that points AI models to your most important pages — think of it as a curated guide for AI rather than crawlers. It's an emerging standard, not yet universal, but it's quick to add and a clear positive signal. Our free llms.txt Generator builds one for you in seconds.
Does this check my whole site or one page?
It scores the single URL you enter, plus your site-wide robots.txt and llms.txt. It's a fast snapshot of one important page. A full AI audit evaluates your entire site, shows your live visibility across the AI assistants, and ranks every fix by impact.
Why did I score low even though my site looks great?
AI readiness is about machine-readability, not visual design. A beautiful site can still block AI crawlers, lack structured data, have no llms.txt, or be written as prose with no Q&A structure. Those are invisible to a human visitor but decisive for whether AI can read and cite you.
What's the single highest-impact fix?
It depends on your result, but if AI crawlers are blocked, fix that first — nothing else matters until the AI engines can actually reach your content. After access, adding structured data and FAQ-style content usually moves the needle most, because together they let AI both understand and quote you.
This is one of several free SEO tools from Custom Web Audits.
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run a full audit.
