Re: Of course you can backlist the domains..
not sure on the downvotes, as a previous head of IT in a school we had a major job of tracking and tracing web activity for anti bullying, PREVENT strategy, grooming logs and all sorts of safeguarding incidents. This was mandated by the LEA and council - not something we made up or decided to do ourselves. Not only did we log websites but PC activity too, the logs were collected by other agencies as part of investigations too (police, childrens services etc). This was a very large school with some shady sorts so there was usually a major incident annually.