Skip to main content
Start for free

Schema Markup

Schema markup is structured data, usually JSON-LD from Schema.org, added to a page's code to tell search engines and AI systems exactly what the content is: a product, an FAQ, a how-to, a person. Clean schema is one of the strongest signals that gets a page read and cited by AI.

What it is

People can read a page and infer that "$49" is a price and "Dr. Lee" is the author. Machines need it spelled out. Schema markup labels each part of your content in a vocabulary search engines and AI systems already understand, so there is no guessing about what your page means.

Why it matters

Schema is one of the clearest ways to serve the search-engine and AI-system audiences at the same time. Tools like Perplexity, ChatGPT, Gemini, and Google rely on structured data to interpret and trust a page. Skip schema and you make an AI system work harder to understand you, which usually means it cites someone else.

What to do

Add valid JSON-LD to your most important pages first: products, FAQs, how-tos, and articles. Validate it, keep it accurate, and match the schema type to what the page actually is.

Frequently asked questions

Code you add to a page that tells search engines and AI systems what each piece of content is, so they do not have to guess.
Yes. Structured data is one of the strongest signals AI systems use to read, understand, and cite a page.
JSON-LD from Schema.org is the standard most search engines and AI systems prefer.

Related terms

Run the audit

One score. Ten pillars. About a minute.

Free, no credit card required. See where your site stands today.

Start for freeWhat is WAIO?