Guide · 6 min · Updated 20/05/2026

How to test structured data in 2026

Validator, Rich Results Test, GSC Enhancements — which tool to trust when they disagree.

Validator vs Rich Results Test

Schema.org validator checks syntax. Rich Results Test checks Google-supported types. GSC Enhancements reports the live indexed state. All three should agree — when they don't, GSC is ground truth.

Common questions

  • Why does GSC report errors I can't reproduce?

    GSC samples from live indexed pages, including cached versions. Drift between deployed code and indexed code is the most common cause.

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