What does schema markup do for AI answers?
Schema markup is a signboard for machines: hidden labels telling Google AI Mode or ChatGPT your name, address and hours without guessing. Google says its AI features need no special schema markup 1. For a local business it is still worth an afternoon, provided every label matches what a visitor can see 2. It tells the machine who you are. It does not make the AI pick you.
Mr Ong was quoted for something he will never see
Mr Ong runs an aircon servicing firm in Ubi. His phone number is painted on his van, and this week a developer told him his site needs schema before ChatGPT will mention him. A quote came with it.
He has never seen schema, and he never will: it lives in the page's code. When someone asks Google AI Mode or ChatGPT for an aircon chemical wash in the east this Saturday, he wants his firm in the answer. Is schema the missing piece, or a new line on an invoice?
Neither, quite. Schema helps a machine tell whose page it is reading. It cannot make the AI choose him. And plenty of local sites skip even that much: across 147 business sites we read in Hong Kong and Singapore in September 2026, 59% of the Hong Kong sites and 19% of the Singapore ones never told a machine which business the page belongs to. That counts missing labels, not missed customers: we did not test whether adding them moves any AI answer.
Your shop has a signboard. Your website may not
Walk past Mr Ong's unit and the signboard tells you, in one look, who he is and what he does. A machine reading his website gets no such look. It sees paragraphs, photos and a phone number, and has to work out which is which.
Schema markup (also called structured data) is the signboard for that machine reader: a short block hidden in the page's code that says plainly, this is the business name, this is the address, these are the opening hours. Most of it uses schema.org, a shared dictionary of labels 3.
Google calls markup "explicit clues about the meaning of a page" 3. Note the word clues. A signboard points at a shop. It does not stock the shelves.
Google itself says AI answers need no special markup
Here is the part the sales pitch leaves out. Google's guide to its AI features lists "overfocusing on structured data" among the ideas you can ignore: "there's no special schema.org markup you need to add" 1. It still recommends markup for rich results (search listings with extra detail).
Its page on AI features goes further: beyond being indexed and eligible for a snippet, "there are no additional technical requirements" 2. One basic it does list: "Making sure your structured data matches the visible text on the page" 2.
Not required is not useless. A company label on your home page, Google says, can help tell your organisation apart from others in search results 8. For local businesses, the same guide points to your Google Business Profile as a route into AI responses 1. That profile is your other signboard: keep it current first.
One label is worth an afternoon. Most of the rest are not
A local business needs very little. Here is the order I would give Mr Ong.
| Label | What it tells the machine | Worth it? |
|---|---|---|
| Your business card (schema.org calls it LocalBusiness, or a narrower type such as Dentist) | Name and address (the two Google requires), phone with country code, opening hours, website 7 | Yes, first. On the home or contact page |
| Your company (Organization) | Legal name, logo, links to your own profiles; none compulsory 8 | Yes, if you have no single shopfront |
| Your services (Service) | What you do and the area you serve 9 | Only where each service has its own page |
| Products and prices (Product) | An item, its price and stock | Only if you sell goods online |
| Star ratings for your own business | Stars from your own reviews | No. Google recommends it only for sites reviewing other businesses 7 |
| Questions and answers (FAQPage) | The questions and answers on the page | No. Google stopped showing the result in 2026 6 |
Google asks for the most specific type that fits 7, so Mr Ong's label would say HVACBusiness (schema.org's word for air-conditioning firms). A few labels, complete and accurate, beat many badly formed ones 3. Machines, like passers-by, prefer one clear sign to a lamp post covered in flyers.
A signboard that promises more than the shop is worse than none
Google's rule is blunt: do not add structured data about information that is not visible to the user, "even if the information is accurate" 3. Markup "must be a true representation of the page content" 4. Hours in the code that differ from the page, or a price list that exists only in the hidden labels, is a signboard saying open late on a shop that shuts early.
The cost: a manual action (a penalty applied by a Google reviewer) takes away your eligibility for richer listings, though Google says ranking is untouched 4.
FAQ markup is the cautionary tale. In August 2023 Google limited FAQ results to well-known government and health sites, and How-To results to desktop 5. In 2026 it removed the FAQ documentation, because the result is no longer shown at all 6. Our own site carries no FAQ markup: the questions below are plain text.
Read your own signboard before you pay for a new one
A test you can run alone in two minutes: paste your home page address into Google's Rich Results Test (a free Google page that lists the labels a machine finds on your site) 3. Then check three things against what a customer sees. Is the business name spelt as on your signboard? Is the address the one a customer would walk to? Do the hours match the page?
If it finds nothing, the fix is one block on one page. Not a project.
Schema is good housekeeping, but the larger share of the work is still the page itself: facts written in plain words that a machine can read without running scripts. The free scan is the first step. It shows whether your site tells machines which business it is.
Questions people ask
Will schema markup get my business into ChatGPT or Google AI Mode answers?
Nothing published says so. Google states that its AI features need no special schema.org markup and no extra technical requirements beyond normal indexing 12. Labels help a machine read your facts correctly; whether an answer names you depends on far more.
My developer added FAQ schema last year. Should I remove it?
There is no rush. When Google limited FAQ results in 2023, it said unused structured data does not cause problems for Search, and there was no need to remove it 5. Google no longer shows the result at all 6, so it does nothing for you. Take it out at the next routine edit.
My developer mentions JSON-LD. Is that the right format?
JSON-LD is one way of writing the labels: a single tidy block kept apart from the visible text. Google recommends it as the easiest to maintain, but says JSON-LD, Microdata and RDFa (two ways of weaving labels into the visible text) are equally fine when valid 3. Pick whatever your developer can keep correct.
Can wrong markup hurt my Google ranking?
Google says a manual action over markup removes your eligibility for richer search listings and does not affect how the page ranks in web search 4. Misleading markup can still count as spam under its guidelines 4. The safe rule: label only what a visitor can read on that page.
Should I mark up the star ratings from my Google reviews?
Not about your own business. Google recommends rating labels on local business markup only for sites that collect reviews about other local businesses 7. Show your reviews to visitors if you like, but keep them out of the hidden labels describing your firm.
Next: Which AI crawlers should you allow in robots.txt, and which should you block?
Sources
- Google Search Central, Optimizing your website for generative AI features on Google Search, undated. Accessed 13 November 2026.
- Google Search Central, AI features and your website, undated. Accessed 13 November 2026.
- Google Search Central, Introduction to structured data markup in Google Search, undated. Accessed 13 November 2026.
- Google Search Central, General structured data guidelines, undated. Accessed 13 November 2026.
- Google Search Central Blog, Changes to HowTo and FAQ rich results, 8 August 2023. Accessed 13 November 2026.
- Google Search Central, Latest Google Search documentation updates, undated. Accessed 13 November 2026.
- Google Search Central, Local business (LocalBusiness) structured data, undated. Accessed 13 November 2026.
- Google Search Central, Organization (Organization) structured data, undated. Accessed 13 November 2026.
- Schema.org, Service, undated. Accessed 13 November 2026.
Our own counts come from our Hong Kong and Singapore sector studies of September 2026, 147 sites, one scan and one text read each, scored with the published rubric. Not a market survey.