sure, you may consider anything I write public domain anyways. Though, if you like I could rewrite it myself. Should it be written on a new page, the First time user, or simply the ip-check.info page?
Have a nice day,
P.S.: Regarding the question whether there is a tool for testing this: Like Patrick stated, asside from background knowledge, there is no such tool. Here is why:
It simply isn't possible for a web page, to access every part of your browser, to check which settings you've set. If this was the case, this would be a bigger fingerprinting surface, then any combination of Supercookies and Addons could create. Thus, these sites are only able to do a rather "surface based testing approach". It's pretty much a if/else script, with things like: