Google Moves its Structured Data Testing Tool
In December 2020 Google announced they would be moving their structured data testing tool to Schema.org. The tool is now available as a beta at validator.schema.org.
Here was Google's earlier announcement on twitter.
Looking for a general purpose schema validator? Check out https://t.co/hGrr8NasVy's new Schema Markup Validator tool, a reboot of the Structured Data Testing Tool: https://t.co/orj0MIkFZV https://t.co/UZwBVXvSdh— Google Search Central (@googlesearchc) May 11, 2021