nope it's not you, since the code sharing service I used for this project (and most of my other frhd projects) has been taken down, it takes insanely long to respond, most of the time it doesn't even open a new link. I can't be bothered to update this code, if I were to do that I might as well rewrite it and make it better.
half a year late but I rewrote it, it redirects you to a reliable site now and also includes more info about the ghost https://isekeb.herokuapp.com/assets/userscripts/frhd/ghost-checker.js
I'm pretty sure either Pie42 or Calculus made a better version of this. If not then I can rewrite it sometime.
i made an edit of pie's version that includes both isekeb and pie's methods for calculating average time between inputs