If you are still breaking your head to check out CAT Scores online, http://catiim.in/ is the right place to start with and more specifically go to Cat IIM Scores Page which will give you a random page where you need to give your CAT Registration Number and Email Address as on your admit card. This is how it looks like :
You can also check out the list of shortlisted candidate in different IIM’s on the same page. Good Luck!!.