I've been using Plusnet SafeGuard for years and the other day my partner noticed that it wasn't working anymore, for example it doesn't block well known gambling and adult content sites.
I would be interested to know from anyone else who uses Plusnet SafeGuard and if it is still working? If you do test it, be careful what you leave in your browser history.
I've checked the settings and phoned plusnet, who have confirmed that it is enabled on my account, but offered no indication of why it doesn't actually block anything or when it will be fixed.