# Configuring digger domains with Vercel
To use digger with a domain that is purchased through Vercel it works like any other domain. However there is a caveat since a domain purchased through vercel already has a "CAA" record for certificate validation. This doesn't play with with Amazon's Certificate Manager service. To cut a long story short, in order to get it working with digger-configured domain you need to add an additional CAA record:
NAME: <<mydomain.com>> VALUE: 0 issue "amazonaws.com"
Check out this loom to get a clearer picture of how to get it done: