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.