The IFCN reviews fact-checkers for compliance with its code, and issues a certification to publishers who pass the audit.
[3] Facebook and Instagram have used the IFCN's certification to vet publishers for fact-checking contracts.
[4][5] The Reporters' Lab at Duke University maintains a database of fact-checking organizations that is managed by Mark Stencel and Bill Adair.
[6][7] The Lab's inclusion criteria are based on whether the organization:[8] The Duke Reporter's lab found the number of reputable fact-checking sites around the world plateauing in 2024 around 440.
[6] Fact-checking websites in China often avoid commenting on political, economic, and other current affairs.