JSON-LD

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Filed underSEO

In brief · quick answer

JSON-LD (JavaScript Object Notation for Linked Data) is Google's recommended format for implementing structured data, keeping markup separate from HTML in a script tag.

§ 1 Definition

JSON-LD is a lightweight data interchange format Google explicitly recommends for structured data implementation. Unlike Microdata (which requires modifying HTML attributes throughout the page), JSON-LD lives in a single `<script type="application/ld+json">` tag in the page's `<head>` or `<body>`. It is easier to implement, maintain, and update. It also integrates cleanly with content management systems and tag management platforms.

§ 2 Why JSON-LD Won Over Microdata

JSON-LD separates data from presentation. A developer can manage structured data without touching page templates. It is harder to accidentally break with CMS updates. It supports multiple entity types in a single block. Google has stated it is the 'easiest solution for website owners to implement and maintain at scale.'

§ 3 JSON-LD in the AI Age

JSON-LD is becoming even more critical with the rise of AI search. LLMs and answer engines parse JSON-LD efficiently to extract entity relationships, facts, and attributes. Content with clean JSON-LD is more likely to be accurately cited in AI Overviews and other generative search features.

§ 4 Note

JSON-LD can be dynamically generated using most CMS plugins (Yoast, Rank Math, Schema Pro) but custom JSON-LD gives you more control. Always verify dynamically generated JSON-LD for syntax errors.

§ 5 In code

<script type="application/ld+json">
{
  "@context": "https://schema.org",
  "@type": "Organization",
  "name": "Atomic Glue",
  "url": "https://atomicglue.com",
  "description": "Milwaukee digital agency"
}
</script>

Key takeaways

JSON-LD is Google's preferred structured data format
It keeps markup separate from HTML for easier maintenance
Clean JSON-LD improves AI search citation accuracy

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# JSON-LD

JSON-LD (JavaScript Object Notation for Linked Data) is Google's recommended format for implementing structured data, keeping markup separate from HTML in a script tag.

Category: SEO

Author: Atomic Glue SEO & GEO Team

## Definition

## Why JSON-LD Won Over Microdata

## JSON-LD in the AI Age

## Note

JSON-LD can be dynamically generated using most CMS plugins (Yoast, Rank Math, Schema Pro) but custom JSON-LD gives you more control. Always verify dynamically generated JSON-LD for syntax errors.

## In code

<script type="application/ld+json">
{
  "@context": "https://schema.org",
  "@type": "Organization",
  "name": "Atomic Glue",
  "url": "https://atomicglue.com",
  "description": "Milwaukee digital agency"
}
</script>

## Key takeaways

JSON-LD is Google's preferred structured data format
It keeps markup separate from HTML for easier maintenance
Clean JSON-LD improves AI search citation accuracy

## Related entries

Last updated June 2026. Permalink: atomicglue.co/glossary/json-ld