What Is Schema Markup? Structured Data for SEO and AI

What is schema markup used for in SEO?

It turns facts that are obvious to people (this is a price, this is a rating, this is our phone number) into labels machines can read without guessing.

Google describes structured data as a standardized format for providing information about a page and classifying its content. When the markup is valid and the page qualifies, Google can show rich results: review stars, product prices, recipe times, breadcrumbs and more.

Google publishes a case where Nestlé measured an 82% higher click-through rate on pages showing as rich results compared with non-rich result pages. That is one company's result, not a promise, but it explains why structured data is on every technical checklist. It also helps AI tools: clear organisation and product data is easier to quote accurately.

Schema markup example and common types

Google recommends JSON-LD, a script block in the page that does not change what visitors see. Pick the type that matches the page's main content.

A minimal Organization example: <script type="application/ld+json">{"@context":"https://schema.org","@type":"Organization","name":"Brightpath","url":"https://example.com"}</script>. Brightpath here is the fictional brand from the official tutorials.

Schema type	Use it on	Can show
Organization / LocalBusiness	Home or contact page	Business details, logo
Product	Product pages	Price, availability, ratings
Article	Blog posts and news	Headline, image, date
FAQPage	Pages with genuine Q&A	Clearer answers for search and AI
BreadcrumbList	Any page in a hierarchy	Breadcrumb trail in results

How to add and check schema markup

Generate the JSON-LD, paste it into the page, then test it with Google's Rich Results Test. Digimetrics Schema Generator does the first and last steps in a few seconds.

The schema markup generator covers 16 types (business, product, article, FAQ and more), checks the code for missing or placeholder values, and opens Google's Rich Results test in one click. In the official tutorial's sample, it produced valid Organization schema ready to paste into the page head.

To find pages missing structured data across a site, the AI readiness check tests structured data alongside llms.txt and AI-bot access in under a minute. The schema markup guide walks through each type in detail.

Common schema mistakes and related terms

The main mistakes are marking up content visitors cannot see, using the wrong type, and leaving placeholder values in copied code.

Google says not to mark up information that is not visible to the user, even if accurate. Valid markup with all required properties makes a page eligible for a rich result; it does not make one automatic. Use JSON-LD unless your platform makes another format easier, since Google says all three supported formats are equally fine when valid.

Related terms: an AI Overview draws on pages Google understands well, and E-E-A-T is the trust that structured author and organisation details help support.

QUESTIONS PEOPLE ASK

Frequently asked questions

Still unsure? Email support@digimetrics.ai and a person will reply.

What is the difference between schema markup and structured data?

Structured data is the general idea of labelling page content for machines. Schema markup usually means structured data written with the schema.org vocabulary, which is what Google's features use.

Does schema markup improve rankings?

It is not a direct ranking boost. It helps Google understand the page and can earn rich results, which can make your listing more clickable.

What is the best tool to generate schema markup?

Any tool that outputs valid JSON-LD for the right type and links to Google's Rich Results Test. Digimetrics Schema Generator covers 16 types and checks for missing values.

Where do I put schema markup?

Paste the JSON-LD script into the page's head or body. Most CMS platforms and SEO plugins also have a field for custom structured data.

KEEP GOING

What is schema markup?