Full Fact

The model for a fact-checker that chases the correction, not just the verdict. Full Fact, a British charity founded in 2009 and launched the following year by a cross-party group of trustees, follows up its checks by asking public figures and institutions to correct or retract what they said, and names those who fail to respond. That makes it the place to see whether a claim was actually withdrawn. It also builds automated monitoring tools, which it says have been used in more than forty countries. Its checks are written for the British public debate, so it suits readers following UK politics and claims rather than US ones.