UNESCO has developed the Internet Universality Indicators (IUIs) framework to assess national internet development environments. The IUIs are based on principles of Rights, Openness, Accessibility, and Multistakeholder participation. There are 303 indicators across 5 categories and 124 questions. The IUIs were endorsed by UNESCO's International Programme for the Development of Communication in 2018 to be used voluntarily by member states and stakeholders to conduct national internet assessments.