For more information visit www.saferinternet.org.uk and the websites of the partners: Childnet, the Internet Watch Foundation and SWGfL.
Ar wahân i gostau, dywed yr adroddiad mai’r prif bethau a fyddai’n annog pobl i fynd ar-lein yw: gwefannau haws i’w deall; goresgyn ofnau am ddiogelwch; a chael help llaw gan rywun arall.