Best practices for source-based research on misinformation and news trustworthiness using NewsGuard

Evaluations of NewsGuard, a source providing trust-reliability ratings to popular news sources, overall found the site to offer fairly rigorous assessments of source trustworthiness. When using the site, this research recommends assessing the database critically by assessing, for example, trustworthiness ratings at multiple timepoints (and whether ratings have changed), as well as the methods used to determine the reliability ratings. Researchers are cautioned against assuming all content from an “untrustworthy” site has accuracy issues.