Hyperquack
Quack and it's extension Hyperquack are novel techniques for measuring keyword blocking at the application layer in a scalable, longitudinal, and safe way. Quack uses echo and discard servers to detect DPI blocking of traffic based on request headers. Hyperquack measures keyword blocking at the application layer using infrastructural web servers as vantage points. Hyperquack detects interference with HTTP and HTTPS traffic by making use of publicly accessible web-servers with consistent behavior.
