As of June 6th, you can scan only your own profile with this tool. After two years and 28M+ StalkScan sessions, Facebook decided to make the Graph Search less transparent. As usual, they did this without any communication or dialogue with activists and journalists that used it for legitimate purposes. The creepy graph search itself still exists, but is now less accessible and more diffucult to use. Make sure to check yourself with this tool, since your data is still out there!
This tool currently doesn't work on mobile browsers.