The websites dyzurnet.pl and saferintenet.pl recently published a report (available here) summarizing their tests of several home internet filtering (aka parental control) solutions.
GuardLogic’s flagship product, xTerminator, was among the applications tested. Although xTerminator is designed for the enterprise environment, it was part the comparison because of its unique ability to filter images from the internet based on their actual content.
While the tests were quite thorough, the GuardLogic team has some reservations regarding the testing criteria and the conclusions drawn in the report. One example is the decision to measure filtration efficiency as a function of the browser used. We believe that, since in some cases filtering/analysis of the content downloaded from the Internet takes place on a dedicated external server (xTerminator is an example if this type of software, known as content filtering proxy), the type of browser used should not affect the outcome. Also, many of the conclusions of the report are relevant mostly for client-based solutions and not to the xTerminator. For example, on page 23 the note that many solutions cannot cope with properly identifying foreign language pages containing only graphics - we believe that xTerminator is quite effectively in such situations.
