Keeping our children safe online isn't easy. There are too many possibilities to provide rules for every situation. A successful policy for keeping children safe both at home and at school must therefore aim to give the children the knowledge to be able to make their own good choices.
There are many resources online to help support parents with keeping their children safe. Here is a link to one such resource:
https://www.saferinternet.org.uk/advice-centre/parents-and-carers
These are resources that we would normally use in school. You may find these useful to look at these with your child. The aim of these resources is to help children make the right choices by themselves.