Hannah Smith, 14, was found dead after she received a series of abusive messages on the Ask.fm website, telling her to “drink bleach”, “go get cancer” and “go die”.
Her devastated parents who found her hanged at their home in Lutterworth, Leicestershire, are now calling for Ask.fm to be closed down before any more tragedies occur.
The Latvian based website, which launched in 2010, has been heavily criticised by anti-bullying charities because it allows users to post anonymous comments or questions - often of a sexual or insulting nature - on the pages of children as young as 13.
Some child safety experts have even described it as a “stalker's paradise” and an online petition has been set up demanding action is taken.
Messages found on Hannah’s account show how trolls left postings calling her ugly and saying she was overweight.
Teenager found hanged after trolls bombard her with online abuse - Telegraph