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PropertyData for May 2026
materialExtent
Estimated domains
< 1K
Description
The quantity of the materials being described or an expression of the physical space they occupy.
Definition from the Schema.org vocabulary (English).
Trend over time
At least two months are needed to show a trend. The series will grow with every monthly update.
Used on types
Tiers indicate the number of unique domains using the term. They are intentionally approximate to reduce noise and protect site privacy. How to read the data.