Patent ID: 7974998
Filing Date: 2011-07-05
Classification: H04L

Abstract:
1. A computer implemented method of filtering trackback spam, the method comprising: receiving a registration request from a fourth computer hosting a blog; providing a trackback URL to the fourth computer in response to the registration request; providing the trackback URL for posting on the blog hosted on the fourth computer, the trackback URL pointing to a first computer which is not hosting the blog, the first computer being configured to provide trackback spam filtering service; receiving a trackback ping at the first computer, the trackback ping being from a second computer requesting to trackback to the blog, the trackback ping being received by way of the trackback URL posted on the blog; extracting a comment link from the trackback ping; forwarding the comment link to a third computer providing a web reputation service to obtain information about the comment link; receiving information about the comment link, the information comprising characteristics of the comment link; consulting a rules database to determine if the comment link is pointed to a spammer website based on the received information about the comment link; and preventing the trackback to the blog from occurring when the comment link is pointing to a spammer website.