Schema Markup Validator

The Schema Markup Validator (validator.schema.org) is the official tool for checking whether schema.org markup is syntactically correct and properly structured. For healthcare organizations implementing MedicalOrganization, Physician, MedicalSpecialty, and other healthcare schema types, this validator is the first check before testing for rich result eligibility in the Rich Results Test. It catches structural errors, missing required properties, and improper type relationships that could prevent healthcare schema from functioning as intended.