Abstract: A Web site reputation service automatically redirects a browsing request for analysis by a rating server. On the browsing request, a proxy autoconfiguration (PAC) file is downloaded from a PAC server to a Web browser of a user computer. The function of the PAC file is executed, sending a request to a rating server along with a host name of a target Web site. The function does not immediately return a proxy server, but first requests a rating of the Web site. A rating result associated with the Web site is produced by the rating server. The rating server returns the rating result and the function returns an address of a proxy server to the Web browser based upon the rating result. A user can enable the Web Proxy Autodiscovery Protocol to use the service. Access control may be implemented by applying an HTTP authentication mechanism on the Web server that hosts the PAC file.

Abstract: Methods and apparatus for implementing input data security processing on user input data are disclosed. The user input data is entered on a webpage that contains a destination specification for an intermediary security service and an encrypted destination specification for a receiving module of the application program. The user input data is first sent to the intermediary security service for performing input data security processing on the user input data. If the user input data is deemed acceptable, the user input data is sent to the receiving module by decrypting the encrypted destination specification for the receiving module to obtain the destination specification for the receiving module and transmitting the user data to the receiving module using the destination specification for the receiving module.