Grade AR-174Technical

Supported structured-data formats and their limits

Google Search supports structured data in three formats: JSON-LD (recommended as usually easiest to maintain), Microdata and RDFa, and says all three are equally fine as long as the markup is valid. A page without JSON-LD may therefore still carry complete structured data as Microdata attributes (itemscope, itemprop) or RDFa (typeof, property).

Sources

1
Google Search Central · 2025Introduction to structured data markup (supported formats)developers.google.com

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