JSON-LD

JSON-LD (JavaScript Object Notation for Linked Data) is the recommended format for implementing schema markup on web pages. Added as a `<script type="application/ld+json">` tag in the HTML head, JSON-LD describes page content in a machine-readable format that AI systems and search engines parse directly.

JSON-LD is preferred over alternative schema formats (Microdata, RDFa) for three reasons. First, it's decoupled from HTML — you can add or modify structured data without changing page layout or content. Second, it's easier to validate and debug using tools like Google's Rich Results Test. Third, it's the format that Google explicitly recommends and that AI systems are optimized to parse.

For AI search visibility, the highest-impact JSON-LD implementations are: Article schema (with headline, author as Person or Organization, datePublished, dateModified — establishes content identity, authorship, and freshness for every content page), FAQPage schema (wraps question-and-answer pairs in machine-readable markup — AI systems extract FAQ answers almost verbatim, making this one of the highest-ROI schema implementations), Product schema (with name, description, price, currency, availability — critical for commercial queries as AI Overviews expand into product comparisons), and Organization schema (with name, url, logo, description, sameAs for social profiles — establishes entity identity site-wide).

Implementation takes 15-30 minutes per page for basic schema, or can be automated through CMS plugins and template-level implementation. After adding JSON-LD, validate syntax with Google's Rich Results Test, then audit for content-match accuracy — ensuring your schema data actually reflects what's on the page.