Free AI Visibility Checker: 5 Ways to Test If AI Knows Your Brand (in 10 Minutes)

Search for a free AI visibility checker and you get a wall of score-in-30-seconds tools. Some are good, and 2 of them are covered below. But before you paste your URL into anything, know this: the 5 most revealing tests need no tool at all. You can run them yourself in about 10 minutes, and they tell you something a single score cannot: not just whether AI knows your brand, but where the knowledge breaks.

The short version: Ask ChatGPT who you are. Ask ChatGPT and Google AI Mode for a category recommendation and record whether you are named. Check the "best of" listicles the engines cite for your absence. Strip your branding and see if a model can still tell your content is yours. View your site's raw HTML. Each test isolates a different failure. Free tools like Ahrefs' AI Visibility Checker and HubSpot's AEO Grader automate parts of this. Ivanooo's free audit does the full read, with evidence.

The 5 tests

1. The entity test. Open ChatGPT and ask: "Who is [your brand]?" There are 4 possible outcomes: a clean, correct description; a description with wrong facts; confusion with a similarly named company; or a hedge like "I don't have information on that." Only the first outcome counts as a pass. If the model cannot state what you do in 1 sentence, you do not exist as an entity in its world, and every downstream question about your category will be answered without you.

2. The recommendation test. Ask ChatGPT and Google AI Mode the question your buyer would ask: "best [category] for [use case]" or "who should I use for [job to be done]." Run 5 phrasings on each engine and write down every brand named. Being described when asked directly (test 1) and being recommended when the buyer asks the real question are 2 different results, and only the second one sells. If the engines name your competitors and hand back a generic non-answer about you, you have found the exact spot where revenue leaks.

3. The footprint test. Google "best [your category] 2026" and open the top 5 listicles. AI engines build most of what they say about brands from third-party sources like these, not from your own website. Scan each list for your name. Absence here predicts absence in AI answers, because the engines cite these pages when a buyer asks for options. If you are missing from all 5, the problem is upstream of your website, and this is usually why a brand is invisible in ChatGPT despite ranking fine on Google.

4. The logo test. Copy a paragraph from your homepage, delete every mention of your brand name, and paste it into ChatGPT with the question: "Which company wrote this?" If the model cannot tell, and it names 3 competitors as equally plausible authors, your voice is the category average. Byron Sharp's distinctive-asset logic applies to language too: an asset only works if it identifies you without the logo attached. Content that reads like the averaged voice every model produces by default gives an engine nothing to recognize and nothing to choose.

5. The raw HTML test. On any key page, right-click, choose View Page Source, and search (Ctrl+F) for a sentence you can see on the rendered page. Most AI crawlers, including OpenAI's and Perplexity's, do not execute JavaScript. If your content only appears after client-side rendering, the crawler sees an empty shell, and everything you publish is invisible at the retrieval layer no matter how good it is.

What each failure means

Test	A failure means	The fix front
Entity test	The model cannot resolve who you are	Entity clarity: 1 consistent description everywhere, organization schema, sameAs links
Recommendation test	You are findable but not chosen	Distinctiveness: a point of view the model cannot get from the category
Footprint test	You are absent from the sources engines cite	Earned third-party mentions, worked per engine
Logo test	Your voice is the category average	A recognizable voice, measurable as distance from the model's default
Raw HTML test	Crawlers see an empty shell	Rendering: server-side, static, or prerendered HTML

The free tools, and what they add

2 free tools are worth your 10 extra minutes. Ahrefs' AI Visibility Checker queries 6 platforms, including ChatGPT, Gemini, Perplexity, Copilot, and Google AI Overviews, with no signup, and shows your mention counts plus the top 5 domains cited alongside your brand. HubSpot's AEO Grader scores you out of 100 across ChatGPT, Perplexity, and Gemini on 5 dimensions, including sentiment and share of voice, with no account required.

Both are useful thermometers. Neither is a diagnosis. A score of 34 tells you that you are sick, not which of the 5 failures above is making you sick, and the fixes are completely different. Fixing rendering when your real problem is an average voice wastes a quarter.

When the tests say you are broken

The 5 tests show you where you break. Ivanooo's free audit is the full version of the same checker: paste your URL, and it runs the buyer-question battery across the engines, measures your share of recommendation against named competitors, and scores how far your voice sits from the model's default draft. You get the read with the evidence attached, per engine, not a single number. The retrieval half of the fix is table stakes; the recommendation half is where brands win or lose, and that split is the whole game in answer engine optimization.

At Ivanooo, Firoz Azees built that instrument because every checker on the market measures whether you appear, and none of them measures why you are not chosen. The 10-minute version above is free forever. So is the full audit.

FAQ

What is a free AI visibility checker? A tool or method that shows whether AI engines like ChatGPT, Gemini, and Google AI Mode know, cite, and recommend your brand. The 5 manual tests above cover entity, recommendation, footprint, voice, and crawlability without any tool.

Can I check my AI visibility without any tool? Yes. The 5 tests in this guide need only a browser and about 10 minutes: ask ChatGPT who you are, run buyer questions on 2 engines, scan the top listicles, run the logo test, and view your page source.

Which free AI visibility tools are worth using? Ahrefs' AI Visibility Checker (6 platforms, no signup) and HubSpot's AEO Grader (scored across 3 engines, no account) both give a real signal. Treat them as thermometers, not diagnoses.

Why does my brand show up on Google but not in ChatGPT? Different plumbing. Google rewards rankings; AI engines resolve entities and lean on third-party sources, and most AI crawlers do not run JavaScript. You can pass SEO and fail tests 1, 3, and 5 at the same time.

How much of AI's picture of my brand comes from my own website? A minority. The engines build brand answers largely from third-party sources such as listicles, reviews, and communities, which is why the footprint test matters more than another blog post.

What do I do if I fail the tests? Match the failure to the fix front in the table above. Rendering and entity failures are technical and fast. Footprint and voice failures are strategic, and they are the 2 that decide whether an engine recommends you or a competitor.