How Suitable is my website?

[Mankini]

I am Evaluating my website, i have to write about how suitable it is, i have said that it is for 13-20 year olds, Male gender.

Is there any additional information i could add?
How could i make a case for the images,text,structure and colours to say that it IS suitable?

[Jake]

Have a look at the format of the web business analysis sites like quantcast.com, compete.com and alexa.com (Unfortunately you have to be a fairly big player to be listed) They get user stats from a tiny sampling of users with certain browser toolbar add-ons, etc.