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ABSTRACT

ABSTRACT

This thesis describes the design and implementation of a World Wide Web filtering system. It begins with a brief history of the web and is followed by an overview of the protocols and standards that are used on the web. Next, reasons for using a web filtering system will be illustrated with examples of web security issues, personal privacy issues, and unwanted browser features that cannot be disabled. Examples of how the filtering system can be used to implement new features will also be presented. This will be followed by the design and implementation of the filtering system and details of how the filtering system components interact with each other to filter web content. Following this, examples will be presented to illustrate how the filtering system can be used to address the web security issues, personal privacy issues, unwanted browser features, and to implement new features. Finally, related projects will be discussed and conclusions will be presented.