ClaimReview Schema Validation API

ClaimReview schema markup enables fact-checking rich results in Google Search — allowing eligible fact-checking organizations to display their verdicts on specific claims directly in search results. Valid ClaimReview structured data includes the claim text, who made it, and the fact-checker's rating. Google restricts this rich result type to approved fact-checking organizations.

ClaimReview rich results are restricted to approved fact-checking organizations. Sites must meet Google's eligibility requirements and follow ClaimReview guidelines.

Required Properties

PropertyTypeDescription
claimReviewedrich result
stringA short summary of the claim being evaluated.
reviewRatingrich result
RatingThe fact-checker's verdict. Include ratingValue and alternateName (e.g. 'False', 'Mostly True').
authorrich result
OrganizationThe fact-checking organization authoring this review.
itemReviewedrich result
ClaimThe claim being reviewed. Include author (who made the claim) and appearance (URL where the claim appeared).

Recommended Properties

Missing recommended properties generate warnings. They won't block validation, but rich result-tagged properties are needed for full Google rich result eligibility.

PropertyTypeDescription
url
URLThe URL of the fact-check article.
datePublished
ISO 8601 dateWhen the fact-check was published.
name
stringThe title of the fact-check article.

Rich Result Eligibility

Rich result type: Fact check rich result (restricted to approved organizations)

Requirements: Required: claimReviewed (text of the claim), reviewRating (with ratingValue and bestRating), author (the fact-checking org), and itemReviewed (the Claim with author). Only available to approved organizations.

Example valid ClaimReview JSON-LD

{
  "@context": "https://schema.org",
  "@type": "ClaimReview",
  "url": "https://example.com/fact-checks/claim-about-structured-data",
  "claimReviewed": "Structured data guarantees a #1 ranking in Google Search",
  "author": {
    "@type": "Organization",
    "name": "TruthCheck Media",
    "url": "https://example.com"
  },
  "datePublished": "2026-03-18",
  "reviewRating": {
    "@type": "Rating",
    "ratingValue": "1",
    "bestRating": "5",
    "worstRating": "1",
    "alternateName": "False"
  },
  "itemReviewed": {
    "@type": "Claim",
    "author": {
      "@type": "Person",
      "name": "Unknown SEO Guru"
    },
    "appearance": {
      "@type": "OpinionNewsArticle",
      "url": "https://source.example.com/seo-myths"
    }
  }
}

Validate via API

Validate this schema against Google's requirements in one API call:

curl "https://schemacheck.dev/api/v1/validate" \
  -H "x-api-key: YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"jsonld":{"@context":"https://schema.org","@type":"ClaimReview","url":"https://example.com/fact-checks/claim-about-structured-data","claimReviewed":"Structured data guarantees a #1 ranking in Google Search","author":{"@type":"Organization","name":"TruthCheck Media","url":"https://example.com"},"datePublished":"2026-03-18","reviewRating":{"@type":"Rating","ratingValue":"1","bestRating":"5","worstRating":"1","alternateName":"False"},"itemReviewed":{"@type":"Claim","author":{"@type":"Person","name":"Unknown SEO Guru"},"appearance":{"@type":"OpinionNewsArticle","url":"https://source.example.com/seo-myths"}}}}'

Official Documentation

Google Structured Data: ClaimReview

Validate your ClaimReview schema now

100 free validations/month. No credit card required.