A method, apparatus and system for processing webpage data. The method includes: in response to a webpage being opened, sending a link contained in the webpage to a network side device; receiving a group identification from the network side device, the group identification being determined by the network side device according to the link and used to specify a group the link belongs to; determining whether there is a browsed link belonging to the group specified by the group identification; and in response to determining there is a browsed link belonging to the group specified by the group identification, prompting that webpage content pointed by the link contained in the webpage has been browsed.