Patent ID: 8601120

Claim:
An update notification method, comprising: taking snapshots of a network resource; capturing specific contents of the network resource through obtaining at least one of a specific area of the network resource and a specific element of the network resource, wherein the specific area of the network resource is determined based on areas of child nodes and a number of nodes similar to the child nodes in a document object model of the network resource; the areas of the child nodes are not greater than a first threshold, the similar nodes and the child nodes are placed in a group based on marking; a total of the areas of the child nodes and areas of the similar nodes in the group is greater than a second threshold; and the first threshold and the second threshold are not less than 0.5; comparing specific contents of two consecutive snapshots of the network resource; and if there is a change in the specific contents of the network resource, notifying a user that contents of the network resource have been updated.