I have enabled web safe to stop social media sites but my son has accessed a social media site using a downloaded app, can this be blocked and can social media sites still be accessed when using proxy servers?
Proxies, VPNs or even just changing a device's DNS to something other than VM DNS will bypass websafe completely. It operates at the DNS level through VM's DNS only. One could even setup a hotspot on their phone and connect other devices to it, to bypass it. So it will only provide limited protection if you have someone living with you who is more techie minded.
- - - - - - Any opinions expressed by myself are entirely my own and do not represent Virgin Media in any way.