childline.org.uk
A service from childline to allow young people to report inappropriate materials of them online.
internetmatters.org
They offer a wealth of practical tips, from age-specific online safety checklists to comprehensive guides on setting parental controls.
reportharmfulcontent.com
Helps to remove content of under-18’s online.
ceop.police.uk
Ran by the National Crime Agency, CEOP helps with the removal of any inappropriate content, but also supports young people facing abuse online.