Free tool
AI visibility checker
See which AI crawlers can reach your site, whether they can read it, and what ChatGPT and Gemini say live when buyers ask.
The checks
What this checker measures
4 readiness checks and 1 live sample. Readiness is whether AI can reach and read you; the sample shows whether it names you.
01AI crawler access, bot by bot
A verdict per crawler from robots.txt, because they differ: OAI-SearchBot decides ChatGPT search citations, GPTBot only feeds training, and Google-Extended governs Gemini.
02Readability without JavaScript
Several AI crawlers never run your scripts. We parse the page as they receive it and measure the readable text.
03Machine-readable identity
Whether structured data names your business. The honest caveat: it helps search engines know who you are; no study proves it lifts AI citations.
04llms.txt, reported not scored
The proposed AI sitemap file. No major engine confirms reading it, so we report whether it exists and never grade it.
05A live answer sample
3 buyer questions, asked live on ChatGPT and Gemini while you watch. The first taste of whether AI names you.
How it works
Three steps, no signup
- 01
Paste your address
Any public website works. No account, no email, nothing to install.
- 02
Read the verdicts
Crawler access, readability and identity land in a few seconds, each measured, none guessed.
- 03
Run the live sample
Tell us your category and watch ChatGPT and Gemini answer 3 buyer questions, live.
Why it matters
Why check AI visibility at all
Buyers ask AI before they search
ChatGPT, Gemini and AI Overviews answer with a shortlist. Off it, you are invisible to that buyer.
Some sites block the door by accident
One robots.txt line can block the crawlers that cite you. It is the only AI visibility problem with a one-line fix.
Readable or invisible
Crawlers that skip JavaScript see your page as served. If content only exists after scripts run, they see almost nothing.
Training and answers are separate decisions
Blocking training bots does not hide you from AI search. Knowing which is which keeps both decisions deliberate.
Definition
What AI visibility means
AI visibility is whether the answer engines, ChatGPT, Gemini, Google’s AI results, Perplexity and Claude, mention your business when buyers ask. It is not a ranking: an answer names a handful of businesses, and everyone else might as well not exist.
A checker measures readiness: can the crawlers behind those answers reach your site, read it without scripts, and tell who you are. Readiness is the fixable foundation, not the same thing as being mentioned.
A full AI visibility audit asks the engines directly, across the question shapes buyers use, and measures how often you come up and who is named instead. The AI Visibility Scan does exactly that: 270 answers across 6 engines, every one kept as evidence.
More free checks
Look up how old a domain is or when a domain expires, both read live from the registry, or generate an llms.txt for your site. All tools live at Free tools.
FAQ
Questions people ask
What is an AI visibility checker?
A tool that checks whether AI systems can find and read your website. This one gives a per-crawler access verdict from robots.txt, measures how readable your page is without JavaScript, reads your structured data, reports llms.txt, and then samples live answers from ChatGPT and Gemini so you can see whether they mention you.
Is this a full AI visibility audit?
No, and it does not pretend to be. This page checks readiness and samples 6 live answers. A full AI visibility audit asks the engines many times across many question shapes: the AI Visibility Scan asks 270 times across 6 engines, keeps every answer as evidence, and ships a prioritized fix list.
Why does ChatGPT not mention my business?
Usually because the sources it builds answers from never name you, not because of a technical block. The checker covers the technical half: whether crawlers can reach and read your site. The live sample shows the answer half. If crawlers are allowed and you still never come up, the work is earning mentions in the places AI reads. How to get recommended by ChatGPT covers that playbook.
Does blocking GPTBot hide my site from ChatGPT?
No. GPTBot is OpenAI’s training crawler; blocking it is a content licensing decision. ChatGPT search citations follow OAI-SearchBot, a different user agent. The checker verdicts the 2 separately, because collapsing them is how sites end up blocking the wrong one.
Does llms.txt improve AI visibility?
There is no evidence it does yet. Google says no AI system currently uses it, and a study of 137,000 sites with llms.txt found no measurable effect. We report whether you have one and deliberately do not score it.
Is AI visibility the same as SEO?
They overlap and they are not the same. SEO earns positions in ranked results; AI visibility is whether answer engines mention you at all, and answers are built from sources, not positions. Good SEO helps, and it is possible to rank well while being absent from AI answers. GEO vs SEO draws the full line.
Is the checker free?
Yes. The readiness checks are free and unlimited within fair use. The live sample costs us money per run, so it is free 2 times per visitor per day, and the pool is capped; when a day’s pool is spent the button says so.
The full picture
Then measure it for real.
The AI Visibility Scan asks 270 questions across all 6 surfaces, keeps every answer as evidence, and ships a prioritized fix list. One time, no subscription.