To qualify for the Discover it Miles, you'll need a good or excellent credit score. Like the Discover it Cash Back, this means you'll want a credit score of 670 or above.

FICO scores are used in over 90% of U.S. lending decisions, so it's important to know about the types of FICO scores how to check yours for free. What Is a FICO Score and Why Is it Important?

VantageScore is one of the most common models for laying out your credit score. But exactly what is a VantageScore and how does it work? Read on for more info: ...

The highest credit score is 850. You can get the maximum credit score by reducing your debt, proving you can make payments reliably, and having a mix of debt.