Free AI visibility checkers compared

Published by Discoverable. We make two of the checkers compared here. How these checkers were compared

Updated 9 October 2026

13 of the 25 free AI visibility checkers compared here put customer questions to AI assistants when you run them, including the two Discoverable makes. Honeyb's ChatGPT checker and Semrush read answers stored earlier, and HubSpot, Otterly and SEOcrawl ask a model what it already knows about your business. AI Search Ready, Arobis's AI Visibility Checker and Lighthouse Local only check your website and read no AI answer at all.

Which checkers ask the AI assistants

Checkers that ask the AI assistants send customer questions to ChatGPT, Claude or another assistant when you run them, then report whether the answers name your business. 13 of the 25 compared here do; the groups after them get their answers another way, or do not say how.

Checkers that ask AI when you run them

Arobis ChatGPT Visibility Checker (opens in new tab): Reads your homepage, writes 5 buyer prompts and sends each to ChatGPT through the OpenAI API with web search on. The score, competitors and sources need no email; the per-prompt detail opens after you leave a work email, and a domain's results are kept for 7 days before a fresh run replaces them.
BrightLocal Local AI Visibility Checker (opens in new tab): A one-off report on how your location shows up when people search in Google AI Mode or ChatGPT, whichever you pick. You enter your email and your location's details, check up to 5 prompts, and the report arrives in your inbox as a PDF.
Discoverable free AI visibility checkerOur tool: Reads your website, writes up to 10 questions a customer might type in your category and asks them on Claude with live web search. You see your score, whether AI names you, who it names instead and the sources it cites, in under a minute, with no login and no card.
Discoverable free ChatGPT visibility checkerOur tool: Writes 3 questions a customer might ask in your category, without your name in them, and puts them to ChatGPT's public interface in a fresh, logged-out session, at a UK or US location. It shows whether each answer named you, a short quote around your name where it did and the pages ChatGPT cited, with no login.
Honeyb AI Visibility Checker (opens in new tab): Reads your website and asks one live AI engine, which the page does not name, for a first answer in about 15 seconds, with no sign-up or email.
Invisible Competitor check (opens in new tab): Built for small UK businesses, it takes your website address, your name and an email, and tests 5 real customer questions against ChatGPT, Claude and Gemini at once. It takes 60 seconds, with no sign-up and no card, and the result lands in your inbox.
Local Vitals scan (opens in new tab): Takes your business name, city and state, business type and an email to send the results to. Its homepage (opens in new tab) says the scan tests 5 AI platforms, ChatGPT, Claude, Gemini, Perplexity and Google's AI, while its scan form (opens in new tab) names ChatGPT, Claude, Perplexity and Google's AI. It takes 60 seconds and needs no card.
Mangools AI Search Grader (opens in new tab): Takes your brand name and a short description of your niche, writes prompts from them and tests each prompt on AI models. Without an account it uses ChatGPT (GPT-5 Nano), Mistral Small and Llama 3.3, and Mangools says usage is limited; signing up, at no cost, adds DeepSeek, Claude and Gemini.
Profound AEO Report (opens in new tab): You enter your website and a work email, confirm a code sent to that email, and Profound emails a report on how ChatGPT, Perplexity and Google AI Overviews respond to prompts it generates about your business. Profound says it captures the answers from the consumer experience, not from API outputs.
Scope AI Visibility Checker (opens in new tab): Takes one domain and runs 5 prompts, once (opens in new tab), on ChatGPT, Claude, Gemini and Perplexity. Its billing page (opens in new tab) says the scan needs no account, while its getting-started guide (opens in new tab) sends you to sign up with your email.
Surfeo AI Visibility Test (opens in new tab): Takes your website, industry and city and runs one real query on ChatGPT, the question a customer would ask when looking for a business like yours. It takes about 60 seconds, with no sign-up.
VisiScan AI Visibility Scanner (opens in new tab): Takes a URL and runs 5 buyer questions across up to 4 assistants, through their providers' APIs, which its homepage (opens in new tab) lists as ChatGPT, Claude and Perplexity today. It needs no sign-up or card. This page says an email is asked for only to send the full scored report, while its homepage (opens in new tab) says an email saves the free results and their private link, and that the full report with the fix plan is a one-time $49 purchase.
Zarla AI Visibility Checker (opens in new tab): Takes your business name and suburb, finds your Google Maps listing first, then asks your customers' question on ChatGPT and Google's AI. It counts the answers rather than scoring them (its example: named in 2 of 12), with no sign-up, in about 2 minutes.

Checkers that read stored answers

These look your business up in AI answers collected before you arrive, so a result is only as recent as the last collection.

Honeyb ChatGPT Visibility Checker (opens in new tab): Matches your brand name or domain against 796 ChatGPT answers to buyer questions, one answer per question, captured from the United States with web search on, on 2 October 2026. Nothing runs when you search, and there is no sign-up.
Semrush AI Visibility Checker (opens in new tab): Takes your domain and draws on a database of 26M+ prompts and responses across ChatGPT, Gemini, AI Mode and AI Overviews. You can use it 3 times a day without registering.

Checkers that ask what a model already knows

These ask a model about your business, or have one estimate how AI answers treat you, without putting a customer's question to an AI assistant and reading its answer.

HubSpot AI Search Grader (opens in new tab): Takes your company name, location, industry and product or service, then asks GPT-5.4 mini, Perplexity and Gemini "how it characterizes your brand based on its training data". No account is needed, and a form opens the full report. HubSpot's AEO page (opens in new tab) still calls this checker AEO Grader, and says its Perplexity answers come from live search.
Otterly AI Authority Checker (opens in new tab): Takes a brand name and domain and asks Claude Sonnet and GPT-5.4 by API, with Google's Knowledge Graph, whether the brand is known. Otterly says the results reflect AI training data, not the live web; no sign-up is needed.
SEOcrawl AI Visibility Checker (opens in new tab): Reads your homepage, then a model estimates how your business would show up in AI answers. SEOcrawl calls the result an estimate, not a live measurement; no sign-up is needed.

Checkers that do not say how they answer

Their pages name AI assistants but do not make clear whether a check asks them, reads stored answers or estimates.

Ahrefs AI Visibility Checker (opens in new tab): Takes a brand name and is powered by Ahrefs Brand Radar, which Ahrefs calls the largest AI visibility database, built on search-backed prompts. Its how-to says Ahrefs queries ChatGPT, Gemini, Perplexity, Copilot and Google AI Overviews with those prompts and looks for your brand in each answer, and its FAQ adds Google AI Mode; the page does not make clear whether those queries run when you check or were run earlier for the database. No sign-up, no card and no limit on brands; the preview shows the top 5 results per section.
Am I On AI analysis (opens in new tab): Asks for your website and a business email, and its form audits one platform at a time, Google AI Overview or ChatGPT; no card. The homepage does not say how a check gets its answers.
SE Ranking AI Visibility Checker (opens in new tab): Takes your domain and up to 5 competitors for an instant snapshot across AI systems, and its form lists AI Overviews, AI Mode, ChatGPT, Gemini and Perplexity. The page does not say how the answers are collected. You get 5 checks a day, then the offer of a trial.
Searchable Visibility Report (opens in new tab): Its report form (opens in new tab) asks for your website, your first and last name and a work email, which you confirm with a 6-digit code it sends, then your location, your business's reach and a few more questions, and the report comes to your inbox; no card. The page heading names ChatGPT, Google and Perplexity, and the page does not say how the answers are collected.

Which only check your website

Website-only checkers read your own site, such as its pages, structured data and crawler access, and score how ready it looks to AI assistants without reading a single AI answer. A readiness score can point to fixes, but it cannot tell you whether ChatGPT or any other assistant names you today.

AI Search Ready check (opens in new tab): Scores your site on 40+ technical signals, such as structured data, llms.txt and crawler access, with no sign-up or card. Its questions to AI assistants, 12 written the way a UK buyer would type them, are part of the paid citation audit.
Arobis AI Visibility Checker (opens in new tab): Scores how ready your site is to be found and cited by AI assistants, in about 25 seconds with no sign-up. Arobis says the score is derived from your own site, not from live prompts to each model, and the fix plan opens after a short contact form.
Lighthouse Local AI Visibility Audit (opens in new tab): Crawls your homepage, service pages and schema and scores 45+ on-site signals that AI assistants read, in 60 seconds, with no sign-up, card or email.

Otterly's AI Visibility Checker page (opens in new tab) sends you to a sign-up form, and one of its other free tools (opens in new tab) checks a URL's readiness for AI search.

Quick comparison

25 free AI visibility checkers: what you enter, how each answers, the AI assistants, how many questions, and what it asks of you
Checker	How it answers	You enter	AI assistants	Questions	Sign-up and limits
Arobis ChatGPT Visibility Checker	Asks AI when you run it	Domain; country, preselected; optional description	ChatGPT, through the OpenAI API with web search	5	No sign-up for the score; work email for the detail; a domain gets fresh prompts after 7 days
BrightLocal Local AI Visibility Checker	Asks AI when you run it	Email, location details and prompts	Google AI Mode or ChatGPT, one per check	Up to 5	Email required; report sent as a PDF
Discoverable free AI visibility checkerOur tool	Asks AI when you run it	Domain	Claude with live web search	Up to 10	No login or card; under a minute; a website checked in the last 6 hours shows that check
Discoverable free ChatGPT visibility checkerOur tool	Asks AI when you run it	Domain; UK or US	ChatGPT, logged out	3	No login; 2 an hour per visitor; may turn you away when busy; a website checked from the same country in the last 24 hours shows that sample
Honeyb AI Visibility Checker	Asks AI when you run it	Website	One engine, not named	Not stated	No sign-up or email; about 15 seconds
Invisible Competitor check	Asks AI when you run it	Website, your name and email	ChatGPT, Claude and Gemini	5	Email for the report; no sign-up or card; one free check per site every 24 hours
Local Vitals scan	Asks AI when you run it	Business name, city and state, business type and email	ChatGPT, Claude, Gemini, Perplexity and Google's AI on its homepage; its scan form leaves out Gemini	Not stated	Email required for the results; no card; 60 seconds
Mangools AI Search Grader	Asks AI when you run it	Brand name and a short niche description	ChatGPT, Mistral Small and Llama 3.3; more once you sign up	Not stated	No account for 3 models; usage limited
Profound AEO Report	Asks AI when you run it	Website URL and work email	ChatGPT, Perplexity and Google AI Overviews	Not stated	Work email, confirmed by a code; report emailed
Scope AI Visibility Checker	Asks AI when you run it	Domain	ChatGPT, Claude, Gemini and Perplexity	5	Its pages disagree on whether you need an account; one-time
Surfeo AI Visibility Test	Asks AI when you run it	Website, industry and city	ChatGPT	1	No sign-up; about 60 seconds
VisiScan AI Visibility Scanner	Asks AI when you run it	URL	Up to 4 by API; today ChatGPT, Claude and Perplexity	5	No sign-up or card; an email saves the results; full report $49 one-time
Zarla AI Visibility Checker	Asks AI when you run it	Business name and suburb	ChatGPT and Google's AI	Repeated; 12 in its example	No sign-up; about 2 minutes
Honeyb ChatGPT Visibility Checker	Reads stored answers	Brand name or domain	ChatGPT, answers stored once	796 stored	No sign-up
Semrush AI Visibility Checker	Reads stored answers	Domain or URL	ChatGPT, Gemini, AI Mode and AI Overviews	Not stated; draws on 26M+ stored	No account; 3 a day
HubSpot AI Search Grader	Asks what a model knows	Company name, location, industry and product or service	GPT-5.4 mini, Perplexity and Gemini	Not stated	No account; a form for the full report; under 2 minutes
Otterly AI Authority Checker	Asks what a model knows	Brand name and domain	Claude and GPT-5.4 by API, plus Google's Knowledge Graph	Not stated	No sign-up
SEOcrawl AI Visibility Checker	Asks what a model knows	Domain	None asked; one model estimates for ChatGPT, Claude, Gemini and Perplexity	Not stated	No sign-up
Ahrefs AI Visibility Checker	Not stated	Brand name	ChatGPT, Gemini, Perplexity, Copilot, AI Overviews and AI Mode	Not stated	No sign-up or card; no limit on brands; top 5 results per section
Am I On AI analysis	Not stated	Website and business email	Google AI Overview or ChatGPT, one per audit	Not stated	Business email required; no card
SE Ranking AI Visibility Checker	Not stated	Domain and up to 5 competitors	Form lists AI Overviews, AI Mode, ChatGPT, Gemini and Perplexity	Not stated	5 free checks a day, then a 14-day trial sign-up
Searchable Visibility Report	Not stated	Website, name, work email, location and reach	ChatGPT, Google and Perplexity, in its heading	Not stated	Name, work email confirmed by a code, location and reach; no card
AI Search Ready check	Checks your site only	Website	None in the free part	None; 12 in the paid audit	No sign-up or card
Arobis AI Visibility Checker	Checks your site only	Domain	None asked; a readiness estimate per assistant	None asked	No sign-up; a contact form for the fix plan
Lighthouse Local AI Visibility Audit	Checks your site only	URL	None asked	None asked	No sign-up, card or email; 60 seconds

Not stated: the checker's own page does not say. Each page was read on 8 October 2026.

What Google and Bing report

Two reports count your own site's real appearances in AI answers, rather than a sample of questions. Google Search Console (opens in new tab) counts appearances in AI Overviews and AI Mode in its Performance report, with the rest of your web search traffic. Bing Webmaster Tools (opens in new tab) has an AI Performance report showing where your content is cited in AI-generated answers in Microsoft Copilot, Bing and some partner AI services.

How these checkers were compared

Each maker's own page was read on 8 October 2026, and every fact above comes from the page it links to. No checker was run for this comparison. It sets out what each maker says its checker does, and asks the same of each: what you enter, how it gets its answer, which AI assistants it names, how many questions it asks and what it asks of you.

A checker is listed when its maker offers it free as a check of AI visibility. The groups run from checkers that ask AI assistants when you run them to checkers that read no AI answer, and within a group they are listed alphabetically. Nothing is ranked or rated. Where a page does not say something, the table says Not stated; where two of a maker's pages disagree, both are linked.

Discoverable, made by Be Discoverable Ltd, publishes this page and makes two of the checkers in it, marked Our tool. They are described from the code that runs them and listed by the same rules as the rest.

Spotted something out of date? Email hello@bediscoverable.ai and the page will be corrected.

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