experian.com
equifax.com
transunion.com
These are direct links to the credit reporting agencies.
I wouldn't get it from a third party-through a loan website, etc.
The above companies can charge a small fee. You can get a report for free if you have been turned down for credit within the last 60 days.
I believe there is a link on the equifax or experian website where you can order a report from all 3 for a certain price.
You can even look at them online.
If you find any incorrect information, start a dispute with the credit reporting agency immediately.