Schema: identifier

An in-depth JSON-LD example for JobPosting markup, wired into the Xoo universe as Xoo Code Inc. hiring a Senior Structured Data Engineer for the XooStructured team at Dunmore. Learn the Google for Jobs rich result requirements: the tricky baseSalary composition, employmentType enum, remote-work properties, and the requirements soup that trips up most authors.

Dataset JSON-LD example for Jane Xoo's 1945-1955 pediatric outcome data. Covers distribution with DataDownload for file formats, temporalCoverage and spatialCoverage, variableMeasured, license, measurementTechnique, and how Dataset markup feeds Google Dataset Search.

MonetaryGrant JSON-LD example for a cash grant or award. Grant subtype adding amount (MonetaryAmount or Number).

MedicalStudy JSON-LD example for a clinical study. MedicalEntity subtype adding healthCondition, sponsor, status (MedicalStudyStatus enum), studyLocation, studySubject. Parent of MedicalObservationalStudy and MedicalTrial.

Country JSON-LD example for ISO 3166-1 sovereign states. Direct AdministrativeArea subtype used in address chains, eligibleRegion / ineligibleRegion rules, and Place containment.

State JSON-LD example for first-order national subdivisions (US states, Australian states, Indian states, German Länder). Direct AdministrativeArea subtype, commonly nested via containedInPlace into Country.

City JSON-LD example for incorporated cities and towns. Direct AdministrativeArea subtype used to anchor LocalBusinesses, events, and knowledge-graph entries into a municipal jurisdiction.

MedicalDevice JSON-LD example for an FDA-cleared medical device. Direct MedicalEntity subtype with 6 direct properties: adverseOutcome, contraindication, postOp, preOp, procedure, seriousAdverseOutcome.

Permit JSON-LD example for a permission granted by an authority. Intangible with 7 direct properties (issuedBy, issuedThrough, permitAudience, validFor, validFrom, validIn, validUntil). Parent of GovernmentPermit.

GovernmentPermit JSON-LD example for a permit issued by a government agency. Direct Permit subtype. Use for building permits, health permits, vehicle permits, and similar government-issued authorisations.

ProfilePage JSON-LD example for a person or organisation profile page. Direct WebPage subtype. Google's Profile Page rich result keys on this type.

ActionAccessSpecification JSON-LD example for geographic / subscription / date constraints on an Action. Intangible with 7 direct properties.

Thing JSON-LD example for the root of the entire schema.org vocabulary. Every type descends from Thing. Use it directly only when no subtype fits; its 13 properties (name, url, image, identifier, sameAs, potentialAction, etc.) are the universal entity signals every page should publish.