Content filters are a key tool typically included in parental control software. They can help to reduce the chances of children coming across inappropriate content, such as pornographic and violent material.
Some filters allow parents to set different profiles for different children - so mums and dads can offer a more protective experience for younger children.
It's worth knowing that content filters can sometimes 'over-block', which means they can prevent access to content that is suitable for your child to see. Likewise, they can 'under-block' - allowing some inappropriate content to slip through the filter.
If you want to give your child access to a site that has been blocked, most filters will let you unblock a particular site. And filters can also allow you to add sites that were not previously on the blocked list.