A Survey of Worldwide Censorship Techniques
J. L. Hall, Maria Aaron, Amelia Andersdotter, B. Jones, Nick Feamster, Mallory Knodel · 2023
This document describes the technical mechanisms used by censorship regimes around the world to block or impair Internet traffic. It aims to make designers, implementers, and users of Internet protocols aware of the properties being exploited and mechanisms used to censor end- user access to information. This document makes no suggestions on individual protocol considerations, and is purely informational, intended to be a reference.