What is Uniform Resource Locator Filtering

URL strings are scanned for target keywords regardless of the domain name specified in the URL. This affects the HTTP protocol. Typical circumvention methods are to use escaped characters in the URL, or to use encrypted protocols such as VPN and TLS/SSL.

Internet Censorship in China

Treasa Nic Giolla Chomhaill (Computer Science Department, Letterkenny Institute of Technology, Ireland), Nigel McKelvey (Computer Science Department, Letterkenny Institute of Technology, Ireland), Kevin Curran (School of Computing and Intelligent Systems, University of Ulster, Northern Ireland), and Nadarajah Subaginy (School of Computing and Intelligent Systems, University of Ulster, Northern Ireland)