Most business owners assume a "free AI visibility scan" is a form that collects your email and emails you a sales call. That was largely true two years ago. It is no longer how the better tools work, and knowing the difference is worth about ten minutes of your time.
Here is the buying decision this page answers: should you run a free AEO scan on your website today, and what exactly will you have in your hands 30 seconds later?
Everything below is checkable. Where a claim comes from the UDomain AEO Auditor product page, that is stated. Where the tool has a real limitation, that is stated too, because a scan you regret starting is worse than no scan.
What Is an AEO Scan, in Plain Language?
An AEO scan checks whether AI assistants can read, understand and quote your website when a customer asks them a question. AEO stands for Answer Engine Optimization. Where SEO chases a ranking and a click, AEO decides whether ChatGPT, Gemini, Perplexity, Claude or Google AI Overview names your business in the answer at all.
The practical difference matters. A customer who asks an AI assistant "who does commercial air-conditioning maintenance in Kwun Tong" gets a short list, not ten blue links. If your business is not in that short list, the enquiry never reaches you and you never see it happen.
A scan is the diagnostic step. It tells you whether you are in the running before you spend anything trying to win.
One more thing worth understanding before you start. AEO is not a replacement for SEO, and running a scan does not mean abandoning what you already do on Google. The two channels sit side by side, and most Hong Kong SMEs discover they are performing acceptably in one and are effectively absent from the other. The point of the diagnostic is to find out which of those two situations describes you, before your next marketing decision is made on a guess.
Is the UDomain AEO Auditor Scan Really Free?
Yes. The UDomain AEO Auditor states plainly that the scan is 100% free, with no credit card and no account required. You enter a URL and the full report generates on the page immediately.
The product page's own FAQ addresses the question directly: email is used only to display the full dashboard and for optional follow-up analysis, with no charges and no auto-billing.
That is the honest shape of the deal. You are not paying money. You are giving a URL, and optionally an email address, in exchange for a diagnostic report. If handing over an email is a dealbreaker for you, the scan itself still runs without an account.
What Do You Actually Get in the Report?
You get four things, and they arrive together rather than as a teaser followed by a paywall. Here is the extractable version, taken from the product page.
Free scan: the facts
--- Price: HK$0. Completely free.
--- Credit card required: No.
--- Account or sign-up required: No.
--- Time to result: Under 30 seconds for most sites; up to 60 seconds for complex sites.
--- Where results appear: On the page immediately, not by email.
--- Engines covered: ChatGPT, Google AI Overview, Perplexity, Claude and Gemini.
The four report modules
--- An AI Visibility Score plus your standing relative to your industry, so the number means something.
--- AI Copy Signals covering how quotable your writing actually is, including citations, sources and conversational tone.
--- Structure checks across your site, including JSON-LD schema coverage, AI crawler access, answerability and internal linking. The auditor runs more than 170 AEO structure checks in total.
--- A prioritised Action Plan with each fix tagged High or Medium, so you know what to do first rather than being handed a wall of problems.
The last item is the one that separates a useful scan from a scary one. A score alone creates anxiety. A score with a ranked to-do list creates a decision.
What Will the Free Scan Not Do?
Four honest limitations. Any of them could be the reason this is not the right step for you today.
It diagnoses, it does not repair. The report tells you that your H1 tags are inconsistent, your internal linking is weak, or your schema coverage is incomplete. Somebody still has to open the site and change it. If you have no developer and no agency, the report will sit there.
Results are not instant, even after you fix things. The product page is upfront about this: structural changes are typically re-crawled by AI engines within 2 to 4 weeks, while citation and authority signals take 1 to 3 months to accumulate. If you need enquiries next week, AEO is not that lever.
It cannot fix a thin business presence. If your website has three pages, no pricing, no service detail and no contact information a machine can parse, the scan will correctly tell you that. No amount of schema markup compensates for having nothing to quote.
Complex sites can take longer and reveal more than you want. A large site with years of accumulated pages may score badly for reasons that require a real project, not a weekend. That is useful information, but it is not comfortable information.
Who Should Run the Scan, and Who Should Skip It?
A verdict per buyer type, because "everyone should try it" is not advice.
Run it today if you are a Hong Kong SME with a real website and real customers who research before buying. Clinics, professional services, B2B suppliers, trading firms, schools and agencies fit here. Your buyers ask AI assistants for shortlists. A free 30-second check on whether you appear is an obvious yes.
Run it if you already spend on SEO or Google Ads. You are paying for visibility in one channel while possibly being invisible in another. The scan tells you whether that gap exists, at no cost, which makes it the cheapest input to your next budget conversation.
Run it, then get help, if the report comes back with more than a handful of High-priority items. Reading a report is free. Fixing 20 structural issues across a live site is not a DIY evening.
Skip it for now if your website is essentially a placeholder. If you have one page and a phone number, spend the first week writing real service and pricing content. Scan afterwards, when there is something for AI to quote.
Skip it if you are purely walk-in and local with no web presence at all. A dai pai dong with no website has different priorities. Get your business listing and basic information right first.
How Does a Free Scan Compare With Paid AEO Tools?
Free scans and paid platforms answer different questions, and the honest comparison is not flattering to either side.
A free scan answers "where do I stand right now, and what should I fix first". It is a snapshot. Paid AEO platforms, which typically sell on monthly subscriptions, answer "how is my visibility trending across engines, and how do I compare with named competitors week to week". That is monitoring, and monitoring is genuinely worth paying for once you have something to monitor.
Where a paid tool wins: continuous tracking, competitor benchmarking, alerting, and team workflows. If AEO is a standing line item in your marketing plan, a subscription earns its keep.
Where the free scan wins: it costs nothing, it takes 30 seconds, and it tells you whether you have a problem worth subscribing to solve. Buying a monitoring subscription before you know your baseline is paying to watch a number you have not yet earned.
The sensible sequence for most Hong Kong SMEs is scan first, fix the High-priority items, re-scan in a month, and only then decide whether continuous monitoring is worth a monthly fee. If you want the paid landscape and real prices side by side, see Best AEO Tools in 2026: Real Pricing and Who Should Pay.
How Often Should You Re-Scan?
Monthly. The AEO Auditor product page recommends re-scanning monthly to track score changes over time, and that cadence lines up with how AI engines refresh.
The logic is simple. Structural fixes get re-crawled in 2 to 4 weeks, so a monthly re-scan is the first point at which your work could plausibly show up in the score. Citation and authority signals move over 1 to 3 months, so three consecutive monthly scans give you a real trend line rather than noise.
Scanning weekly will mostly show you the same number and tempt you into changing things that were not broken.
Frequently Asked Questions
How is AEO different from SEO?
SEO targets Google search rankings and click-through. AEO targets AI engines so your content can be quoted as the answer. Even with no click, your brand can appear inside answers on ChatGPT, Perplexity, Google AI Overview and similar systems.
How long does the scan take?
Under 30 seconds for most sites, up to 60 seconds for complex ones, with results appearing on the page immediately rather than arriving by email.
Do I need a developer to act on the report?
For some items, no. Rewriting a page to answer questions directly, or adding sources and citations, is editorial work. For schema markup, crawler access and H1 consistency, you will usually want someone technical, which is exactly where an implementation consultation is the difference between a report and a result.
Will this guarantee ChatGPT recommends my business?
No, and no tool can honestly promise that. AI engines weigh many signals, including third-party mentions you do not control. What a scan does is remove the self-inflicted reasons you are invisible, which is the part you can actually fix.
The Right Next Step
If you have a website, customers who research, and 30 seconds, run the free scan. It costs nothing, requires no card and no account, and gives you a score, an industry comparison, more than 170 structure checks and a prioritised action plan on the page immediately.
Then make one decision with the result. Either the High-priority list is short enough to hand to whoever maintains your site, or it is long enough that you want someone to own it with you.
The uncomfortable truth is that being invisible to AI feels like nothing at all. No bounced enquiry, no angry email, just a quiet absence from lists your competitors are on. We understand AI. UD stands with you. Twenty-eight years in Hong Kong has taught us that the businesses which win are rarely the ones with the best technology. They are the ones who checked.
Run Your Free Scan, Then Decide
The scan takes under 30 seconds and costs nothing. If the report shows problems you would rather not fix alone, UD has been solving Hong Kong companies' web and visibility problems for 28 years, and we will walk you through it step by step, from reading your score to shipping the fixes.
Reviewed by the UD AI team, Udomain Web Hosting Company Limited, Hong Kong. Product facts verified against the UDomain AEO Auditor product page on 29 July 2026.
