Method and system for processing link data, and client

The invention discloses a method and a system for processing link data, and a client. The method comprises the following steps of analyzing a page description language document, and when an extension tag in the page description language document is analyzed, acquiring an interface for the link data according to attribute query for the extension tag, and acquiring corresponding link data; rendering a webpage according to the content obtained by analyzing the page description language document and the acquired link data. By the method, the system and the client, a third party flexibly controls the show form and style of the link data on the basis of ensuring link safety.