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Content Filtering: A Fine Feature Set

Content Filtering: A Fine Feature Set

Here’s what to look for when shopping for a web content filtering solution.

posted January 9, 2012  |  Appears in the Winter 2012 issue of EdTech Magazine.

If district officials want to give students the ability to access the web using campus resources, they must be sure to implement a content filtering solution that’s both flexible and robust. Osterman Research’s Michael Osterman says the best solutions will:

  • identify objectionable content, such as pornographic images and offensive language;
  • detect flesh tones and other indicators of potentially objectionable content;
  • block social media, chat room, instant messaging and other types of real-time content;
  • offer highly granular blocking capabilities so that students doing research on legitimate topics, such as breast cancer, are allowed to access appropriate content, while making similar (yet inappropriate) content inaccessible;
  • have supervisory capabilities so that blocked websites can be reviewed by school officials on a case-by-case basis to weed out “false positives” (such as in the breast cancer example above); and
  • have a very high catch rate for images, social media posts, and e-mail, instant messaging and chat room content.

Osterman also recommends that districts employ a cloud-based web filtering solution (or one that’s updated on a nearly real-time basis). “Simple URL filtering tools deployed on premises will block only a fraction of objectionable content,” he says. “Tools that are continually updated are necessary in today’s web environment.”

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