You built a beautiful product page. Fast loading, clean design, great copy. Then you check Google Search Console and see your competitor's listing showing star ratings, price, and availability — right in the search results. Yours shows just a title and a meta description. That gap is Product Schema Markup. This guide covers everything: what it is, how Google uses it, which fields actually matter, common mistakes that silently break your rich results, and implementation examples for vanilla HTML, Next.js, and React. What Is Product Schema Markup? Product Schema is a vocabulary from schema.org/Product that you embed in your HTML to tell search engines — in a structured, machine-readable format — exactly what a product page is about. It's implemented as JSON-LD (JavaScript Object Notation for Linked Data), a block of <script type="application/ld+json"> that sits in your page's <head> or <body> .…
