# Structured Data

> Use when auditing metadata, crawlability, structured data, or indexability related to Add structured data markup. Verify the rendered HTML and HTTP response rather than relying only on source files.

- Skill: `thedaviddias/structured-data` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add thedaviddias/structured-data`
- Raw SKILL.md: https://api.skillmd.com/api/skills/thedaviddias/structured-data/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Web & Frontend
- Author: thedaviddias (https://skillmd.com/u/thedaviddias)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/thedaviddias/structured-data

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# Add structured data markup

Structured data enables rich snippets with stars, prices, images, and FAQ dropdowns in search results—significantly increasing click-through rates.

## Quick Reference

- Structured data enables rich snippets in search results
- Use JSON-LD format (Google recommended)
- Common types: Article, Product, FAQ, HowTo, LocalBusiness
- Validate with Google Rich Results Test

## Check

Analyze if this webpage implements structured data using Schema.org vocabulary. Check for JSON-LD, Microdata, or RDFa markup.

## Fix

Add appropriate Schema.org structured data to this webpage based on its content type (Article, Product, LocalBusiness, etc.).

## Explain

Explain how structured data helps search engines understand page content and enables rich snippets in search results.

## Code Review

Review metadata generation, rendered HTML, structured data, and response headers related to Add structured data markup. Flag exact routes or templates where search-facing output violates the rule, and describe how to verify the final page output.

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For full implementation details, code examples, and framework-specific guidance,
see `references/rule.md`.

Rule page: https://frontendchecklist.io/en/rules/seo/structured-data