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How Fact Checking Works

How fact-checking works

UPDATED APR 7, 2025
In the coming months, we will end the current third party fact checking program in the United States and begin moving to a community-based program called Community Notes. We are beginning with rolling out Community Notes in the US, and will continue to improve it over the course of the year before expansion to other countries (read more here and here).
Today in the rest of the world, we rely on fact-checkers who are independent from Meta and certified through the non-partisan International Fact-Checking Network (IFCN) or, in Europe, the European Fact-Checking Standards Network (EFCSN) to address misinformation on Facebook, Instagram, and Threads. While fact-checkers focus on the legitimacy and accuracy of information, we focus on taking action by informing people when content has been rated.
Here’s how it works outside of the United States.

Identifying misinformation
In many countries, our technology can detect posts that are likely to be misinformation based on various signals, including how people are responding. It also considers if people on Facebook, Instagram, and Threads flag a piece of content as “false information” and comments on posts that express disbelief. Fact-checkers also identify content to review on their own.
Content predicted to be misinformation may be temporarily shown lower in Feed before it is reviewed.

Reviewing content
Fact-checkers will review a piece of content and rate its accuracy. This process occurs independently from Meta and may include calling sources, consulting public data, authenticating images and videos and more.
The ratings fact checkers can use are False, Altered, Partly False, Missing Context, Satire, and True. These ratings are fully defined here.
The actions we take based on these ratings are described below. Content rated False or Altered makes up the most inaccurate content and therefore results in our most aggressive actions, with lesser actions for Partly False and Missing Context. Content rated Satire or True won’t have labels or restrictions.

Clearly labeling misinformation and informing people about it
When content has been rated by fact-checkers, we add a notice to it so people can read additional context. Content rated Satire or True won’t be labeled but a fact-check article will be appended to the post on Facebook. We also notify people before they try to share this content or if they shared it in the past.
  • We use our technology to detect content that is the same or almost exactly the same as that rated by fact checkers, and add notices to that content as well.
  • We generally do not add notices to content that makes a similar claim rated by fact checkers, if the content is not identical. This is because small differences in how a claim is phrased might change whether it is true or false.

Ensuring fewer people see misinformation
Once a fact-checker rates a piece of content as False, Altered, or Partly False, or we detect it as near identical, it may receive reduced distribution on Facebook, Instagram and Threads. We dramatically reduce the distribution of False and Altered posts, and reduce the distribution of Partly False to a lesser extent. For Missing Context, we focus on surfacing more information from fact checkers. Meta does not suggest content to users once it is rated by a fact-checker, which significantly reduces the number of people who see it.
We also reject ads with content that has been rated by fact-checkers as False, Altered, Partly False, or Missing Context and we do not recommend this content.

Taking action against repeat offenders
Pages, Groups, Profiles, websites, and Instagram accounts that repeatedly share content rated False or Altered will be put under some restrictions for a given time period. This includes removing them from the recommendations we show people, reducing their distribution, removing their ability to monetize and advertise and removing their ability to register as a news Page.
Content fact checkers prioritize
Fact checking program policies
Content ratings fact-checkers use
Penalties for sharing fact-checked content

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Our approach to dangerous organizations and individuals
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Our approach to newsworthy content
Our approach to Facebook Feed ranking
Our approach to explaining ranking
Accessibility at Meta
Research tools
Content Library and Content Library API
Ad Library Tools
Other research tools and data catalogue
Enforcement
Detecting violations
Taking action
Governance
Governance innovation
Oversight Board overview
How to appeal to the Oversight Board
Oversight Board cases
Oversight Board recommendations
Creating the Oversight Board
Oversight Board: Further asked questions
Meta’s Bi-Annual Updates on the Oversight Board
Tracking the Oversight Board's Impact
Security
Threat disruptions
Security threats
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Reports
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Widely Viewed Content Report
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