Does structured data help your business show up in AI answers?
Structured data is a set of hidden labels in your web pages that state plain facts about your business, like your name, address, phone number and services. It helps search engines and AI tools be sure of those facts. On its own it doesn't get you cited more often, and Ahrefs tested that on 1,885 pages.
If you've looked into AI search at all, someone has probably told you structured data is the answer. It's often the first thing sold, because it's quick to add and easy to show on a report.
Here's what it does, what the evidence says it doesn't do and where it fits.
Structured data is a set of labels machines can read.
It's a block of code in your page that visitors never see. It describes the page in a shared vocabulary called schema.org, which search engines and AI tools understand. Where your footer shows your phone number, the structured data states that this number is the business's telephone number, so nothing has to be guessed.
For most businesses, three kinds of label matter:
| Label | What it states |
|---|---|
| Organization or LocalBusiness | Your name, website, logo, phone, address, service area and profiles on other sites |
| Service | Each service you offer, and where you offer it |
| FAQPage | The questions and answers on a page |
It removes doubt about the basics.
A tool reading your site doesn't have to work out which of three phone numbers is the main one, or whether the "ABC Roofing" in a directory is the same firm as "ABC Roofing & Exteriors" on your site. The labels say so, and they can point to your profiles elsewhere so the tool can join them up.
Google uses it too. It says LocalBusiness data lets you tell it your opening hours, departments and more, and can help a business appear in the panel that shows up beside some searches. Ahrefs lists other uses: rich results in search, voice assistants and helping machines recognise which business a page is about.
On its own it doesn't get you cited more.
Ahrefs tracked 1,885 pages that added structured data between August 2025 and March 2026, and compared them with 4,000 similar pages that didn't. It measured how often each page was cited in AI answers in the 30 days before and after the change. The write-up came out in May 2026.
| AI tool | Change in citations after adding structured data |
|---|---|
| Google AI Mode | Up 2.4%, within normal ups and downs |
| ChatGPT | Up 2.2%, within normal ups and downs |
| Google AI Overviews | Down 4.6%, a small drop Ahrefs couldn't clearly pin on structured data |
Every page in the study was already being cited before the change. So the test was whether structured data adds to visibility a page already has. For those pages, it didn't.
Google says much the same. Its guide to generative AI in Search says structured data isn't required and there's no special markup to add. And from 7 May 2026 Google stopped showing FAQ rich results, the expandable questions that used to appear under some search results, for every site.
So why do so many pages that AI tools cite carry it? Ahrefs found cited pages were almost three times more likely to have it. Their explanation is that structured data tends to sit on well-kept sites, and well-kept sites also publish better content, earn more links and do the other things that get them cited.
We still add it, carefully.
It doesn't cost much and it removes guesswork about facts that have to be right. When a tool describes your business, you want the phone number and service area it gives to be the ones you chose.
It has to be accurate, though. Google's rules say not to mark up anything readers can't see on the page, and breaking them can cost a page its eligibility for rich results. Labels that go stale are a problem too. An old address in your structured data tells machines the wrong thing with confidence.
FAQ markup is a judgement call now that Google no longer shows FAQ results. We add it where a page has a real question-and-answer section, because it labels those answers clearly for any system that reads the markup. We leave it off pages that don't have one.
You can see what your site has now.
Google's Rich Results Test and the Schema Markup Validator at schema.org both show the structured data on any page you give them. Paste in your home page address and look for an Organization or LocalBusiness entry.
Then read what it says. Check the business name matches the one on your signs and invoices, the phone number is the one you answer and the address is current. If the entry is missing, or it's out of date, that's the first thing to fix.
Other fixes matter more.
If structured data is one of the smaller fixes, these carry more weight:
- Access. AI crawlers have to be able to get in. See is your website blocking ChatGPT and Claude.
- Readable pages. The words have to be in the page without waiting for JavaScript. See why AI tools can't read some websites.
- Clear pages. Each main service on its own page, saying what you do, where and for whom.
- Mentions elsewhere. Reviews, directories and press. See how ChatGPT, Claude and Perplexity decide who to recommend.
The tune-up adds it as one fix among several.
Our free AI Visibility Check looks for structured data on your key pages. It checks whether your site says who the business is, whether the details are complete and whether your questions and answers are marked up.
The AI Search Tune-Up adds what's missing: your business details, your services and your questions and answers, checked for errors against what's on the page. We promise it'll be in place and free of errors. We don't promise it'll get you named, because the evidence says it won't do that alone. That's why the tune-up also covers access, readable pages and clear service pages. It starts at $1,500 for a site of up to 30 pages.