Schema markup works by adding a standardized vocabulary to your webpage that describes what different elements mean. This vocabulary comes from Schema.org, a collaborative project between Google, Microsoft, Yahoo, and Yandex that defines how structured data should be formatted.
When you add schema markup to your page, search engine crawlers can read this additional information alongside your regular content. For example, if you have a product page, the schema markup might specify the product name, price, availability, ratings, and review count. The search engine then uses this structured information to create rich results.
The JSON-LD format (which our generator uses) works by embedding the schema markup in a script tag in your page's HTML, typically in the header or footer. It doesn't affect what visitors see—it's invisible to humans but perfectly visible to search engines. One big advantage of JSON-LD is that you can add, update, or remove schema markup without touching your page's visible content or design.
Not all pages with schema markup automatically get rich results—Google chooses which pages qualify based on content quality, markup validity, and relevance. But having proper schema markup is the essential first step to becoming eligible for these enhanced search features.