REAL website. It is referenced for used by the FTC. If you would like to se their reference go to: http://www.ftc.gov/news-events/press-releases/2005/08/consumers-across-country-eligible-free-annual-credit-reports
Very helpful to see which credit companies are on file. I had peace of mind after checking. However you only get to use it once a year if you pick all three credit agencies which is Equifax, Experian and Transunion.