40+ classic checks
HTTPS, title and meta description, heading structure, mobile friendliness, robots.txt and sitemap, load speed — the technical foundation every search engine still needs.
SEO & AIO audit · Web service
AI Visibility
AI Visibility
Check
A free web service that scores how visible a website is to Google and to AI assistants such as ChatGPT, Gemini, Claude and Perplexity — 40+ SEO checks plus AI-readiness signals, with a result in about 30 seconds.
/01 The problem
Search is changing faster than most websites are. Gartner expects traditional search volume to drop by about 25 % by 2026, BrightEdge expects AI agents to search more than people do, and Adobe Analytics measures visits coming from AI recommendations as 53 % more valuable. People no longer scan ten blue links — they ask an assistant and get two or three names.
The problem is that almost nobody knows whether their website is one of those names. Classic SEO tools measure rankings, not whether GPTBot or ClaudeBot are even allowed in, whether the site carries Schema.org data, an llms.txt file, a machine-readable contact or answer-shaped content an assistant can quote.
I built AI Visibility Check to answer exactly that, in plain language, for free and without registration — so a business owner can see in half a minute where they stand and what to fix first.
/02 What it does
SEO
AIO
SCORE
PDF
AI visibility signals
Access for AI bots (GPTBot, ClaudeBot, PerplexityBot), Schema.org structured data, llms.txt, machine-readable contact details, FAQ content and semantic structure.
Score and a permanent link
A single 0–100 score with key findings, a permanent result link you can come back to and a badge you can embed on your own site.
Full report by e-mail
A PDF with every check, its result and concrete recommendations — written so a marketer, not only a developer, can act on it.
/03 How it works
/01
Enter a URL
No registration, no form filling. One domain can be analysed once per 24 hours, which keeps the service free and the load predictable.
/02
Crawl and rules
The PHP backend fetches the page, parses the markup, robots.txt, sitemap and structured data, then runs the 40+ SEO and AIO rules.
/03
AI layer
An n8n workflow orchestrates the run and the OpenAI API (GPT-5.6 Sol) turns raw findings into recommendations in plain language.
/04
Result and report
The score and key findings appear immediately; the full PDF report is sent by e-mail, again free of charge.
/04 Under the hood
BACKEND
AUTOMATION
AI
GOAL
PHP
The crawler, the rule engine, the scoring and the badge and PDF generation all run on a PHP backend.
n8n
Workflows orchestrate the analysis, the AI step and the delivery of reports by e-mail.
OpenAI API
The GPT-5.6 Sol model turns technical findings into recommendations a non-technical reader can act on.
A tool that earns trust
The service is free by design: it helps first and, when a company wants to go further, it opens the door to AI consulting at Prompts.sk.
40+Checks per analysis
~30 sTime to a result
0 €No registration
2026Launched in August
/05 FAQ
Is AI Visibility Check really free?
Yes. The analysis, the result page and the PDF report are free and there is no paid tier hiding behind them. No registration is required — you only leave an e-mail address if you want the full report sent to you.
What is the difference between SEO and AIO?
SEO decides where your link sits in a list of results. AIO — also called GEO or AEO — decides whether an AI assistant can read your site at all and whether it uses you as a source in its answer. SEO rewards authority and keywords; AIO rewards accessibility, clarity, structure and verifiable facts. The tool measures both, because AIO builds on an SEO foundation rather than replacing it.
How often can I analyse the same website?
Once per 24 hours per domain. Every result gets a permanent link, so you can come back to it later and compare it with a newer run.
What is in the PDF report?
Every check with its result, an explanation of why it matters and a concrete recommendation for fixing it — ordered so you can start with what moves the score most.
Which AI assistants does it take into account?
The AIO checks follow the crawlers and conventions used by ChatGPT (GPTBot), Claude (ClaudeBot), Perplexity (PerplexityBot) and Google Gemini, plus emerging standards such as llms.txt and Schema.org structured data.
Who is behind the tool?
I built and run it myself — Peter Petruš, AI Strategy, Governance & Adoption Expert and founder of Prompts.sk in Bratislava.