Source: Schema.org v30.1 vocabulary. Official installUrl property definition.
What does installUrl mean?
URL at which the app may be installed, if different from the URL of the item.
Used on types (domainIncludes)
Expected value types (rangeIncludes)
Schema.org domainIncludes and rangeIncludes are descriptive guidance, not strict validation prohibitions. Check the official reference for updates.
Related reference
Browse all Schema.org types and properties · Google feature support status