My coder built a script years ago to one of our websites back then that emulated the alexa toolbar, so when the visitor visited our site the script pinged alexa from the visitors ip with all the requested info as if he/she had the toolbar ..

Our ranking was counting down fast, so we had to only load it in the site randomly .. So it is a great way if you want your alexa value to be low and dont want to be caught .. =)

So the safe way is to try and emulate the alexa toolbar .. =)