About
The ClaimReview Project provides fact-checkers, journalists, and news organizations with a free, open structured-data tagging standard to label their fact-check articles. Once a fact-checker applies a ClaimReview tag to an article—specifying the URL, the claim being reviewed, the person or organization making the claim, and the verdict—major platforms including Google Search, Google News, Bing, Facebook, and YouTube can discover and highlight that fact-check in their interfaces. The tagging process is deliberately streamlined: generating a tag typically takes under 30 seconds, lowering the barrier for newsrooms of any size to participate. The project offers comprehensive multilingual resources—user guides, tips, and best practices—in English, German, French, Hindi, Indonesian, Portuguese, and Arabic, making it accessible to fact-checking organizations worldwide. A newer addition, MediaReview, extends the schema to cover manipulated images, audio, and video, allowing fact-checkers to attach structured metadata to debunked media assets as well. ClaimReview is backed by Schema.org and is widely adopted as the industry standard for fact-check markup, giving participating organizations increased visibility and credibility across the web's largest discovery surfaces. It is particularly valuable for independent fact-checking outlets seeking broader reach without paid distribution.
Key Features
- Structured Fact-Check Tagging: Apply standardized Schema.org markup to fact-check articles in under 30 seconds by entering the claim URL, subject, and verdict.
- Multi-Platform Distribution: Tagged articles are automatically eligible for highlighting on Google Search, Google News, Bing, Facebook, and YouTube.
- MediaReview Extension: A companion schema for tagging manipulated images, audio, and video, helping debunk misinformation across media formats.
- Multilingual Support: Full user guides and best-practice documentation available in 7 languages including Hindi, Arabic, and Indonesian.
- Open Standard: Built on Schema.org and freely available to any fact-checking organization, with no licensing fees or proprietary lock-in.
Use Cases
- A news organization fact-checks a viral political claim and tags the article with ClaimReview so it appears in Google's fact-check labels in search results.
- An independent fact-checking outlet in Indonesia uses the localized user guide to implement ClaimReview markup and gain visibility on Facebook's fact-check program.
- A digital newsroom applies MediaReview tags to a debunked manipulated video to signal its findings to YouTube's content moderation and recommendation systems.
- A regional broadcaster tags all of its election-season fact-checks with ClaimReview to increase their prominence in Google News during high-traffic news cycles.
- A nonprofit fact-checking coalition trains member organizations across multiple countries to implement ClaimReview using the multilingual documentation provided by the project.
Pros
- Completely Free: ClaimReview is an open standard with no cost to implement, making it accessible to newsrooms and independent fact-checkers globally.
- Massive Platform Reach: A single tag unlocks visibility across Google, Bing, Facebook, and YouTube simultaneously, amplifying fact-check reach without paid promotion.
- Quick Implementation: The tagging process takes less than 30 seconds, so even high-volume fact-checking operations can adopt it with minimal workflow disruption.
- Globally Accessible: Documentation and guides in 7 languages ensure fact-checkers in non-English-speaking markets can participate equally.
Cons
- Limited to Fact-Check Use Case: ClaimReview is purpose-built for fact-checking organizations and offers no utility outside that specific editorial context.
- Platform Dependency: The value of the tag depends entirely on how search engines and social platforms choose to display fact-check markup, which can change without notice.
- Requires Technical Integration: While creating a tag is fast, embedding structured data into a CMS correctly still requires some technical knowledge or developer support.
Frequently Asked Questions
What is ClaimReview?
ClaimReview is a structured-data tagging standard based on Schema.org that lets fact-checkers annotate their articles with key details—claim, source, and verdict—so search engines and social platforms can identify and surface them.
Which platforms support ClaimReview tags?
Major platforms including Google Search, Google News, Bing, Facebook, and YouTube recognize and use ClaimReview markup to highlight fact-check content for their users.
How long does it take to create a ClaimReview tag?
Creating a ClaimReview tag typically takes less than 30 seconds. You simply enter the article URL, the claim being reviewed, the claimant, and the fact-check conclusion.
What is MediaReview?
MediaReview is an extension to the ClaimReview schema designed specifically for fact-checks involving manipulated or misleading media such as images, audio clips, and videos.
Is ClaimReview free to use?
Yes, ClaimReview is completely free. It is an open standard supported by Schema.org and available to any qualifying fact-checking organization without licensing fees.
