Schema markup is a standardized bit of code added to a webpage that spells out, in a machine-readable format, exactly what something is — a business, a product, a review, an address, a set of hours. Instead of making a computer guess at the meaning of ordinary text, schema hands it the facts directly: this is a LocalBusiness, its name is X, its address is Y, its hours are Z.
Why AI systems lean on it
Large language models and the search systems built on top of them are good at reading prose, but prose is still ambiguous — a phone number in a sentence, a business name mentioned in passing, an address buried in a footer. Schema markup removes the ambiguity. It's the difference between an AI system inferring "this page is probably about a med spa in Austin" and being told directly, in a structured field, that it is.
What it typically covers
- Business identity — legal name, category, description.
- Location — address, service area, geographic coordinates.
- Contact and hours — phone number, hours of operation, holiday exceptions.
- Reviews and ratings — aggregate rating data, when genuinely present on the page.
- Services or products — what's actually offered, sometimes with pricing.
It's not a shortcut around having real content
Schema markup describes what's already on the page — it doesn't replace the page. Marking up a thin, vague page with rich schema doesn't manufacture the substance an AI system is actually looking for; it just makes the little that's there easier to parse correctly. The businesses that benefit most from schema are the ones that already have real, specific, readable content and want to make sure it gets read correctly.
Getting it wrong is common and costly
Schema that's outdated, inconsistent with what's actually on the page, or copied from a template without being filled in correctly can do more harm than having none at all — it hands a machine confidently wrong facts. Stale hours, an old address, or a category that no longer matches the business are the kind of small mismatches that quietly undercut trust in every other signal on the page.
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