Source: Schema.org v30.1 vocabulary. Official valueMaxLength property definition.
What does valueMaxLength mean?
Specifies the allowed range for number of characters in a literal value.
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