Free Structured Data Tester — Validate JSON-LD and Schema Markup
Test your page's JSON-LD structured data and Schema.org markup for errors, warnings, and rich result eligibility.
Free — no account required for a single check. Sign up for continuous monitoring →
What the Structured Data Tester checks
JSON-LD syntax validity
Schema.org type correctness
Required properties present
Rich result eligibility
Entity relationships
AI search visibility signals
How it works
Extracts all JSON-LD blocks and microdata from the page HTML and validates them against Schema.org specifications and Google's rich result requirements.
Monitor continuously — not just once
This free tool runs a one-off check. AuditJet monitors your site on a schedule — alerting you when scores change, before performance regressions affect your rankings and revenue.
Structured Data Tester — FAQ
Is the Structured Data Tester free?
Yes — Structured Data Tester is completely free to use. No account required for a single-URL check.
How does the Structured Data Tester work?
Extracts all JSON-LD blocks and microdata from the page HTML and validates them against Schema.org specifications and Google's rich result requirements.
What does the Structured Data Tester check?
JSON-LD syntax validity. Schema.org type correctness. Required properties present. Rich result eligibility. Entity relationships. AI search visibility signals.
How is this different from Google PageSpeed Insights?
Google PageSpeed Insights is a one-off manual tool. AuditJet adds continuous monitoring, regression alerting, and revenue impact on top of the same performance analysis — so you're notified when scores change, not just when you remember to check.