PropertyData for July 2026

readonlyValue

Whether or not a property is mutable. Default is false. Specifying this for a property that also has a value makes it act similar to a "hidden" input in an HTML form.

Definition from the Schema.org vocabulary (English).

Estimated domains

< 1K stable

Ranking position#4,505 of 5,545

Google eligibleNo

Used on types1

Trend over time

Domain tier in each available month.

Used on types

PropertyValueSpecification10M+

Expected value types

Legend

PropertySchema typeData typeEnumeration

Boolean

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.