Technical SEO
Structured Data (Schema Markup)
Structured data is code added to a page, usually in JSON-LD format, that labels its content so search engines understand it explicitly rather than inferring it.
Marking up a product, FAQ, recipe, or article can unlock rich results and makes the content far easier for AI systems to parse and cite. For example, FAQ schema can surface expandable questions directly in search results. It is the connective tissue between traditional SEO and AI search.
Schema fails validation less often than it fails usefully. Markup can be technically valid while describing the page inaccurately, which risks a manual action for structured data spam. The rule that prevents this is that everything marked up must be visible on the page and must match it. FAQ schema for questions no visitor can read, review markup for ratings that appear nowhere, or Product markup on a category page all cross that line. Test with the Rich Results Test rather than a generic validator, since only the former tells you which rich results the page actually qualifies for.
Example
A recipe page adds Recipe schema with rating, cook time and calories. Google begins showing stars and timing directly in its listing, and click-through rises from 3.1% to 4.8% at the same position. The same markup gives AI systems clean fields to quote, so the recipe also starts appearing in generated cooking answers with attribution.
Frequently asked questions
- Does structured data improve rankings?
- Not directly. It does not boost position, but it makes pages eligible for rich results such as review stars, FAQs and breadcrumbs, which improve click-through. It also helps search engines and AI systems understand what your page is about, which matters for citation.
- Which schema types are worth implementing first?
- For most businesses: Organization or LocalBusiness for entity clarity, Breadcrumb for navigation context, FAQPage where you genuinely answer questions, and Article for editorial content. E-commerce should add Product and Offer. Anything you mark up must be visible on the page.
Related terms
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