The founders of the website linked to the suicide of teenager Hannah Smith said they could reveal the names of anonymous bullies to the police.
Hannah, 14, died last Friday at her home in Lutterworth, Leicestershire, after being abused on the social networking site Ask.fm.
Mark and Ilja Terebin, bosses of the Latvia-based website, said the site has the technology to identify "almost all users" and that they are committed to supporting the Leicestershire Police investigation.
They said "in extreme circumstances such as those we've experienced this week" they can use technology to identify those behind the taunts and "ensure this information is accessible to the appropriate legal authorities".
The father of Hannah Smith, who committed suicide after being bullied on the Ask.fm website welcomes the site's new cybersafety measures.
Major organisations have withdrawn adverts on social networking site ask.fm following the suicide of teenager Hannah Smith.
Maybe it's time we all had a reality check, to look up from our screens, lose the masks we all wear online, and look at each other.