---
title: "Schema Markup"
description: "Structured data code added to a web page's HTML that helps search engines understand content context and enables rich results like star ratings, breadcrumbs, product prices, and event details in the SERP."
url: "https://skribra.com/glossary/schema-markup"
type: "glossary-term"
category: "Technical SEO"
updated: "2026-10-28"
---

# Schema Markup

**Definition.** Structured data code added to a web page's HTML that helps search engines understand content context and enables rich results like star ratings, breadcrumbs, product prices, and event details in the SERP.

**In short.** Schema markup is code that speaks search engine. It tells Google what your content means (not just what it says), unlocking rich results that boost click-through rates significantly.

## Key points

- Schema markup uses the schema.org vocabulary in JSON-LD, Microdata, or RDFa format — Google recommends JSON-LD
- Rich results enabled by schema include star ratings, recipes, events, products, breadcrumbs, and more — Google retired How-To rich results in 2023 and FAQ rich results in May 2026
- Schema doesn't directly boost rankings, but rich results improve click-through rates — which can indirectly improve ranking over time
- Google's Rich Results Test tool validates schema markup and shows a preview of eligible rich results

## How Schema Markup Works

Schema.org is a collaborative vocabulary created by Google, Microsoft, Yahoo, and Yandex to provide a shared language for structured data[1]. JSON-LD (JavaScript Object Notation for Linked Data) is the recommended implementation format — it's embedded in a `<script>` tag in the page's `<head>`, separate from the visible HTML[2]. This separation makes it easy to add and maintain without disturbing the page's visual design. The markup describes entities (Person, Product, Article, FAQ, etc.) and their properties, giving Google machine-readable meaning that powers rich results in the [SERP](https://skribra.com/glossary/serp).

## Schema Types Most Valuable for SEO

Article schema with datePublished and dateModified signals content freshness. Product schema enables star ratings, price, and availability in shopping results. BreadcrumbList schema displays the site hierarchy under your listing. [FAQ schema](https://skribra.com/features/faq-generation) and HowTo schema no longer produce rich results in Google — FAQ dropdowns were retired in May 2026, How-To steps in 2023 — but they still describe Q&A and step-by-step content unambiguously for search and AI systems. For local businesses, LocalBusiness schema with address, phone, and hours improves local pack visibility and [Organic Traffic](https://skribra.com/glossary/organic-traffic) from local searches.

## Implementing Schema Without Coding

Most CMS platforms have plugins that automate [schema generation](https://skribra.com/tools/schema-generator). WordPress users can use Yoast SEO, Rank Math, or Schema Pro[2]. Webflow has apps for structured data. For custom sites, Google's Structured Data Markup Helper walks through a visual tagging process and generates the JSON-LD code. After implementing, validate using Google's Rich Results Test and monitor the Enhancements section in Google Search Console to track which rich results Google has detected and whether there are [crawl or rendering errors](https://skribra.com/glossary/crawlability).

## Related terms

- [SERP](https://skribra.com/glossary/serp): The page Google or another search engine displays in response to a user's query, containing organic results, paid ads, and rich features like featured snippets, image packs, and knowledge panels.
- [Crawlability](https://skribra.com/glossary/crawlability): The ability of search engine bots to access, navigate, and read the pages on your website without encountering technical barriers.
- [Indexing](https://skribra.com/glossary/indexing): The process by which a search engine stores and organizes crawled web pages in its database so they can be retrieved and displayed in search results.
- [E-E-A-T](https://skribra.com/glossary/e-e-a-t): Experience, Expertise, Authoritativeness, and Trustworthiness — Google's framework for evaluating content quality, used by human Quality Raters to assess search result quality and inform algorithm development.

## Sources

1. [Schema.org — Full Vocabulary Reference](https://schema.org)
2. [Google Search Central — Introduction to Structured Data](https://developers.google.com/search/docs/appearance/structured-data/intro-structured-data)

## Machine-readable index

- HTML version of this page: https://skribra.com/glossary/schema-markup
- Site index for agents: https://skribra.com/llms.txt
- Sitemap: https://skribra.com/sitemap.xml
- Public REST API: https://skribra.com/api/v1
- OpenAPI specification: https://skribra.com/openapi.json