---
title: "JSON-LD: glossary: Agent Ready HTML"
description: "JSON-LD defined: Structured data written as JSON in a script tag of type application/ld+json, using schema.org types. A dated, sourced example follows."
canonical: https://agentreadyhtml.com/glossary/json-ld/
site: "Agent Ready HTML"
last_updated: 2026-11-04
section: "Glossary"
---

# JSON-LD: glossary: Agent Ready HTML

> JSON-LD defined: Structured data written as JSON in a script tag of type application/ld+json, using schema.org types. A dated, sourced example follows.

Source: https://agentreadyhtml.com/glossary/json-ld/
Site: Agent Ready HTML
Last reviewed: 2026-11-04

# JSON-LD

In short

Structured data written as JSON in a script tag of type application/ld+json, using schema.org types. Example: Google recommends JSON-LD as the easiest structured-data format to maintain at scale. Related terms: schema.org, Lighthouse llms.txt audit, Initial HTML. schema.org: The shared vocabulary of types and properties (Organization, Product, TechArticle) used in JSON-LD.

## Source of the example

The example in the summary above is from [developers.google.com](https://developers.google.com/search/docs/appearance/structured-data/intro-structured-data), read 4 November 2026.

## Where it shows up on this site

-   [Guide: add JSON-LD](https://agentreadyhtml.com/guides/add-json-ld-agents-use/)
-   [JSON-LD types on home pages](https://agentreadyhtml.com/json-ld-types-on-home-pages/)

## Neighbouring terms

-   [schema.org](https://agentreadyhtml.com/glossary/schema-org/): The shared vocabulary of types and properties (Organization, Product, TechArticle) used in JSON-LD.
-   [Lighthouse llms.txt audit](https://agentreadyhtml.com/glossary/lighthouse-llms-txt-audit/): A Chrome Lighthouse check in the Agentic Browsing category that flags a server error on /llms.txt and marks a 404 as not applicable.
-   [Initial HTML](https://agentreadyhtml.com/glossary/initial-html/): The HTML document a server returns for a URL before any JavaScript runs.

## Sources

1.  [developers.google.com](https://developers.google.com/search/docs/appearance/structured-data/intro-structured-data) https://developers.google.com/search/docs/appearance/structured-data/intro-structured-data, read 4 November 2026

Last reviewed 4 November 2026

Edition

Crawl

2026-11-04

Page updated

2026-11-04

Method

How the viewer reads a page, how a file is graded and how a platform is scored: [the method page](https://agentreadyhtml.com/method/).