Created by the Girls' School Association (GSA), the My Daughter website will be open to all parents, and not just those with daughters at the GSA's fee-paying schools.
The site will provide tips and advice provided directly from the GSA's 200 headmistresses on topics that include- how to realise your daughter's full academic potential, dealing with bullying, recognising eating disorders, use of social networking sites, friendships and how to communicate with your daughter.
The website will be launched in January after a speech next week by Vicky Tuck, of Cheltenham Ladies' College, the GSA's president.
Tuck thinks that Britain's top head mistresses are perfectly placed to dispense such advice.
"We have had thousands of teenage girls pass through our care, as teachers and headmistresses. There's not much that we do not know about dealing with girls and certainly nothing they could do that could surprise us," Times Online quoted her as saying.
Tuck said that the advice on the website will not only help parents, but would benefit the nation as a whole.
"Every organisation could do with a headmistress. As leaders, we are not interested in status or massaging our egos - what we want is to influence what happens and to get things done efficiently. As women, we are great multitaskers and list-makers and we are very systematic. As head teachers, we have to act with great moral authority and clarity as well as sensitivity," said Tuck.
Tuck is hopeful that the site will appeal particularly to fathers, who often feel that their teenage daughters live in a parallel universe, but are too afraid to admit it.
Some of the top tips on dealing with your daughter offered on the website are:
1. It is unrealistic to expect your teenage daughter to be happy all the time: she's on a journey, some turbulence is inevitable
2. Make sure she knows you love her for who she is, not for what you want her to become
3. Don't expect your daughter to tell you everything. You're not her best friend
4. Don't automatically believe her when she says: "Everyone else is allowed to"
5. And the parent who says: "I know my daughter and she would never, ever lie to me," the only answer is "Get real!"