JSON-LD is a JSON-based format for expressing structured data.
It is mainly used to communicate the semantic meaning of a web page to search engines or other systems.
Its full name is JavaScript Object Notation for Linked Data.
The core goal is:
- To help machines understand that “this text is not just a plain string, but data with meaning.”
Example:
<script type="application/ld+json"> { "@context": "https://schema.org", "@type": "Person", "name": "Seonglae Cho", "jobTitle": "AI Researcher", "affiliation": "Holistic AI" } </script>
With this in place, a search engine can understand things like:
- Name
- Job title
- Affiliation in a structured way.

Seonglae Cho