Free AI visibility checker: see who AI names instead of you
The Proofsource free AI visibility checker is for any brand that wants to know whether AI answer engines recommend it. Paste your website or any link to your brand. A free scan asks your buyers' questions on ChatGPT, Perplexity, Claude and Google AI Overviews, stores every answer, and shows your mention rate, who gets named instead, the sites cited and what to fix.
Free AI visibility checker, in short
The facts, ready to quote.
- Engines
- ChatGPT, Perplexity, Claude and Google AI Overviews
- Cost
- Your first scan is free
- Links it accepts
- Website, App Store, Google Play, Google Maps or Shopify link
- Market
- Pick the country the scan runs in
- Every answer
- Stored with its date, so each number traces back
- Report covers
- Mention rate, competitors, cited sources, crawler access, facts and fixes
What is an AI visibility checker?
An AI visibility checker measures how often AI answer engines name your brand when people ask the questions that lead to a purchase. Instead of a search ranking, it reports a mention rate: of the answers to your buyers' questions, how many named you, and who was named when you were not.
The engines do not agree with each other. ChatGPT can name a brand in most answers while Perplexity rarely does, on the same question on the same day. A checker worth using splits results by engine, keeps the actual answers, and shows the sources each engine cited, because those sources are what you can change.
Proofsource drafts your category and buyer questions from your link, lets you correct them, then asks each question on ChatGPT, Perplexity, Claude and Google AI Overviews. The free scan returns your mention rate beside the brand that leads your category, the competitors named instead, the pages the engines quoted, whether AI crawlers can read your site, the facts the engines repeat, and a numbered list of fixes.
How it works
A free scan that asks ChatGPT, Perplexity, Claude and Google AI Overviews your buyers' questions and shows who gets named.
Paste any link
Your website, or a link to your app, Google Maps listing or Shopify store. One box starts the scan.
Pick your market
Choose the country the scan runs in, so answers match what your buyers see.
Check the questions
Your category and buyer questions are drafted for you to correct before anything runs.
Four engines answer
Each question is asked on ChatGPT, Perplexity, Claude and Google AI Overviews, and each answer is stored with its date as it arrives.
Read your report
Mention rate, who gets named instead, the sites cited, crawler access, what AI says about you, and fixes in order.
See it in the product
Screens from the Proofsource app, drawn with sample data for an example brand.
Share of answers naming each brand, in %.
| Buyer question | ChatGPT | Perplexity | Claude | AI Overviews |
|---|---|---|---|---|
| best ai meeting notes app | Not named | #4 | Not named | Not named |
| otter alternatives for startups | #2 | #1 | #3 | Named |
| meeting notes with crm sync | Not named | Not named | Named | Not named |
| ai note taker for sales calls | #3 | Not named | #2 | Not named |
Every capability, live today
3 shipped capabilities behind free AI visibility checker, each in the product now.
Free scan page
A free scan page that shows exactly what a first scan returns, with example results and a box to start your own.
One box for any link, in your market
The same box accepts a website, an App Store or Google Play link, a Google Maps listing or a Shopify link, and starts setup from it. Choose the country the scan runs in and the choice carries into setup so the answers match your buyers.
Start without signing in
You can request a free scan before you have an account, and a link brings you back to it, with fair-use limits that keep it free for everyone.
Who it is for
Find out if AI knows you exist
See whether ChatGPT, Perplexity, Claude and Google AI Overviews name you for the questions your buyers ask, and who they name instead.
Get a baseline before a plan
A free scan gives you real numbers by engine to bring to your team.
Check an app, not just a website
Paste your App Store or Google Play link and see whether AI recommends your app.
Scan from your store link
Start from your Shopify link and see which brands AI names for what you sell.
Why it matters
Four engines, same questions
ChatGPT, Perplexity, Claude and Google AI Overviews, compared side by side on the same day.
Every number has its answer
Each answer is stored with its date, so you can open the text behind any figure.
Fixes, not just a score
Gaps are numbered with the evidence under them, sorted by what moves the number for the least work.
No call in the way
Type your link and the scan runs. Nobody has to talk to you first.
Google AI OverviewsGoogle AI Mode
Free AI visibility checker: Proofsource and other tools
Free AI visibility checks are offered by several respected tools. This table shows what each one describes on its own site.
| Capability | Proofsource | Semrush | Ahrefs | SE Ranking | Otterly.AI |
|---|---|---|---|---|---|
| Free AI visibility check | YesFree scan of your own buyer questions | YesFree AI mention, citation and visibility score checksSource | YesFree preview tool for brand AI visibilitySource | YesOne domain versus up to 5 competitors; 5 checks per daySource | RelatedFree GEO tools: prompt research, fan-out, content check, crawler simulationSource |
| Claude in the free check | YesChatGPT, Perplexity, Claude and Google AI Overviews | Not listed | Not listed | Not listed | Not listed |
| Competitors in the result | YesEvery brand the answers named, ranked, beside your own rate | RelatedCompare mentions, citations and topic coverage against up to four competitorsSource | Not listed | YesUp to 5 competitors in competitor research and free checkerSource | Not listed |
| Start without an account | YesRequest a free scan before you have an account | RelatedFree plan includes Domain Overview for any domainSource | Not listed | Related14-day trial, no card neededSource | RelatedPrompt research, fan-out, content check, crawler simulationSource |
| Choose the market | YesPick the country the scan runs in | RelatedGeographic breakdown of where the brand is mentionedSource | RelatedPrompts run in the location of their source keyword; country list not statedSource | YesUS, UK, Canada, France, Germany, Netherlands, SpainSource | Not listed |
Where each of them shines
Free AI checks that sit inside a complete SEO suite with keyword and backlink data. Compare in full
A huge AI Visibility Index you can explore without setting anything up. Compare in full
A free checker with direct competitor comparison, inside a mature SEO platform.
Free GEO tools for prompt research and content checks. Compare in full
Questions about free AI visibility checker
Is the AI visibility check really free?
Yes. Your first scan is free. It asks your buyer questions once on each engine and the answers stay yours.
Which AI engines does it check?
ChatGPT, Perplexity, Claude and Google AI Overviews, on the same questions, so you can compare them directly. Paid plans track up to 10 engines.
Why does it need an account?
Because every answer is kept. Your report is built from stored answers, and a stored answer has to belong to someone. You can request the scan first and finish signing up from the link.
What can I paste?
Your website, or a link to your app on the App Store or Google Play, your Google Maps listing or your Shopify store.
How long does it take?
The first answers arrive within minutes, and the rest come in as the engines reply.
How is this different from the Semrush, Ahrefs or SE Ranking free checkers?
Those are strong checks inside large SEO suites. Proofsource asks your own buyer questions on four engines including Claude, keeps every answer with its date, and turns the gaps into a numbered list of fixes.
What happens after the free scan?
Your report stays. AI answers move day to day, so a plan asks the same questions again on a schedule and tells a real change from noise.
Can I check a business outside the US?
Yes. Pick the market the scan runs in before you start.
Can I check a site while I browse?
Paste the link into the checker. The Proofsource Chrome extension, coming soon, is for improving your own brand as you browse, not for scoring other sites.
Keep exploring
Try it on your own brand.
Proofsource is live: scan your brand and see free AI visibility checker at work with your own answers, competitors and sources.
Google AI OverviewsGoogle AI Mode