Somewhere in a report from your web developer, or an SEO tool, or an article about AI search, you've seen the words "schema markup" or "structured data" and wondered whether it's something you need. Short version: yes, a little of it, and it's easier than the name suggests.
Schema markup is a block of labels added to a page's code that tells search engines and AI engines what the page is about, in a format they can read without guessing. It uses a shared vocabulary called schema.org, and on most sites it's written as a small JSON-LD block (a text format machines read) in the page's head. Visitors never see it. Google, Bing and the AI engines that draw on them do.
A small business needs four types: one that says what the business is, one for each service, one for the questions and answers on a page, and one for articles. That's it. Here's what each does, how to check what your site already has, and the mistakes that make it useless.
What schema markup does for a local business
A page of text about a plumbing company is clear to a person. A machine has to work out whether "Celina" is the town or a name, whether "8 to 5" is hours or a price, and whether the page describes one business or lists several. Schema markup removes the guessing by labelling each fact: this is the business name, this is the address, these are the opening hours, this is a service it offers, this is a question and this is its answer.
Two things follow. Search engines can show those facts directly (hours and ratings under your result, a question and answer in the results page). And AI engines, which assemble answers from pages they trust, can quote your facts with confidence instead of paraphrasing the competitor whose page was clearer. Our post on the five sources AI engines trust explains why your own site is one of them, and clear markup is part of what makes it trustworthy.
Schema markup doesn't lift a page on its own. It makes a page that's already good easier to read. Markup on a thin page labels thin content.
The four schema types a small business should have
LocalBusiness
One block, usually on the homepage and contact page, with your name, address, phone, opening hours, service area, website and a link to your Google Business Profile and social pages. Schema.org has specific subtypes (Dentist, Plumber, Attorney, Restaurant, AutoRepair and many more); use the closest one. The details must match your Google Business Profile exactly, which our post on Google Business Profile as an AI input covers in detail.
Service
One block per service page: the service name, who provides it, the area served, and a plain description. If you publish prices or ranges, they can go here as an offer. This is the block that lets an engine say "this company offers emergency water-heater replacement in Prosper" rather than "this company does plumbing".
FAQPage
A block listing the questions and answers that appear on the page, word for word. Google now shows FAQ rich results mostly for government and health sites, so don't expect the dropdown under your listing. The markup still matters: it hands engines a clean question-and-answer pair, which is exactly the shape AI answers are built from.
Article (or BlogPosting)
For blog posts: headline, author, publisher, date published, date modified, and a description. It tells engines the page is an article rather than a product or a listing, who wrote it, and how fresh it is. Our guide to writing a service page an AI can quote shows how the page text and the FAQ markup fit together.
How to check what your site already has
You don't need to read code to find out.
- Open Google's Rich Results Test (free, search the name) and paste in your homepage, a service page and a blog post, one at a time. It lists every schema type it found and flags errors.
- For a second opinion, the Schema Markup Validator at schema.org does the same thing and catches types Google doesn't display.
- If you're comfortable with one more step: open the page in a browser, view the page source, and search for "ld+json". Each hit is one block, and you can read the names and values in plain text.
Write down which of the four types each page has. Most small business sites have either none, or a generic Organization block a plugin added, with the name and nothing else.
Mistakes that make schema markup useless
- Facts that don't match. Hours in the markup that differ from the Google Business Profile, or an old address, tell engines your data is unreliable. Consistency beats completeness.
- Marking up things that aren't on the page. Google's guidelines say markup must describe content the visitor can see. An FAQ block with questions the page doesn't show is a problem, not a shortcut.
- One generic block everywhere. A plugin that stamps the same Organization block on every page gives engines nothing about the service pages, which are where the useful questions get answered.
- Reviews you added yourself. Self-written review or rating markup breaks Google's rules and can get rich results removed.
- Set and forget. Prices change, hours change, services get added. Markup that's two years stale is markup that's wrong.
Four blocks, matching your Google Business Profile, describing only what's on the page. That's the whole job.
How Deca Digital helps
The sites we build include the four types above, written for each page rather than stamped once, and kept in step with the business's Google Business Profile. Schema is also part of the Foundation work in our AEO service, which starts with a free check of how AI engines currently describe your business, and a review of your current site's markup is part of any custom website project. We work with businesses across North Texas and remotely.
To find out what your site's markup is telling the engines today, book a free discovery call.