Yes, school hours the boarders have same policy as day pupils and after school before prep it is relaxed and during prep same as during the day and after prep it is relaxed and then everything is blocked after 11 pm.
For certain websites they feel they should have access to they have a clear route on who to go to ask for a discussion on reasons for it being blocked or it will be allowed.
Works fine they all obey the rules regarding the schools IT use policy, and when they want to get on facebook or anything inappropriate they use their phones which their parents provide.