# What is JSON-LD?

JSON-LD is structured data embedded in a page as JSON. It describes the page to search engines and answer engines.

Product pages use WebPage and a generic Thing. ScrollLaunch does not emit SoftwareApplication or synthetic star ratings.

| Field | Value |
| --- | --- |
| term | JSON-LD |
| canonical | https://www.scrolllaunch.com/glossary/json-ld |
| kind | defined term |

## On ScrollLaunch

- [Schema checker](https://www.scrolllaunch.com/tools/schema-markup-checker)