Abstract: In a certified link authentication system, a terminal parses a web page and extracts markup information for a certified link. In addition, the terminal transmits the extracted markup information to a certified link authentication server. The certified link authentication server authenticates the certified link from the markup information of the certified link transmitted from the terminal, and transmits an authentication result to the terminal. The terminal marks the authenticated certified link with a certified mark, renders the web page, and displays it to the user.

Abstract: Provided is a method and apparatus for providing web services by which the performance of web services is improved and exchanges of a large quantity of messages are effectively supported. The method includes: preparing the preference information, which pre-describes information required by a web services provider, to provide web services requested by a web services requestor, and the web services provider interacting with the preference information to minimize the number of messages exchanged between the web services requestor and the web services provider.