YouTube Education Filter

YouTube for Schools was a way to access educational videos from inside a school network. This YouTube feature gave schools the ability to access a broad set of educational videos on YouTube EDU and to select the specific videos that are accessible from within the school network.

Google decided to stop supporting YouTube for Schools (YTfS) as of July 1, 2016. Consequently, the current YouTube safe search does not work anymore.

Google provides an article entitled "Restrict YouTube content on your network or managed devices" on its support site. At this time, Google offers two options to restrict inappropriate content: DNS and HTTP header.

In FortiOS 5.6 with inspection mode set to proxy-based, in a Web Filter profile under Search Engines you can select Restrict YouTube Access and select either Strict or Moderate.