Schema.org announced yesterday in a blog post that the markup validation tool formerly known as the Google Structured Data Testing Tool (SDTT) has been migrated from Google.com to Schema.org and is now live in beta and ready for review and feedback.
Google had announced last year that the SDTT would be deprecated - much to the dismay of the SEO community - and future development would focus on the Google Rich Results Test.
So now the Schema.org validator - which can validate scripts written in Microdata, RDFa 1.1 Lite, JSON-LD 1.0 and many other markup formats - should be the general-purpose markup validator of choice.
And the Google Rich Results Test is the one to use to test how your rich results will look and validate in Google Search.
Here's a quick look at the Schema.org validator which is located at https://validator.schema.org/
The interface is as simple as they get: you can either paste in a script written in JSON-LD or another markup language, or enter a URL where the script is located, then click RUN TEST:
In this example I've entered the URL of my Schema.org markup demo page.
Seconds after I clicked on RUN TEST, the tool produced the following:
In that split-screen view, the code of my page is reproduced on the left, and the validator output appears on the right.
Happily, the validator finds that as a news article, my page gets no error messages or warnings.
If that weren't the case, the tool would give me some information to help me diagnose and fix problems.
In that regard: I've always found the diagnostic information coming out of the SDTT to be pretty cryptic. But Schema.org says the new validator will "help you understand whether or not your data expresses what you hope it expresses, and to reflect the essence of your structured data back in an intuitive way that reflects its underlying meaning."
That sounds promising. Will this validator really be more user-friendly than the SDTT? Stay tuned.