Here is a short online course available for parents on how to identify the signs of CSE.
It is free to sign up for the course and has been recommended by the NSPCC.
Also, other useful sites that may just give you the information you are looking for :)!
Please click here to see a parent's guide for mobile phone safety.
Other useful sites are :
If you have any concerns regarding your child and how they use the internet please do not hesitate to contact school.