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PropertyData for May 2026
dateRead
Estimated domains
< 1K
Description
The date/time at which the message has been read by the recipient if a single recipient exists.
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.