Content filtering
Technology that blocks access to certain types of websites or online content. It can be applied at the network level (on your router) or on individual devices.
In plain English
Technology that blocks access to certain types of websites or online content. It can be applied at the network level (on your router) or on individual devices.
Why it matters
Filtering is one layer of protection, useful for younger children and shared devices. It will not catch everything, especially on encrypted apps or via personal mobile data, so it works best alongside conversation, supervision, and clear family rules. Schools have specific filtering and monitoring duties under KCSIE.
This is practical educational content to support families. For case-specific concerns about a child's safety, contact the NSPCC helpline on 0808 800 5000 or your local safeguarding team.
Last reviewed: 2026-05-17