The credit score you may obtain from these sites are typically different from the score that a mortgage lender will have. Online scores usually are not FICO scores, which are the ones a lender will use to determine creditworthiness for a loan. The differences can be up to 200 points
So, if you are in the market to buy a home and want to check out true picture of your credit, call your lender and have them do a pre-qualification with credit. This will give you a truer picture of your buying power!