Sometimes you might want to move your website from one custom domain (olddomain.net) to a new one (newdomain.com). Here's the best way to do it with as little disruption as possible.
First, go to your domain registrar and add Podpage DNS records to the new domain name.
To do this, look at #2 from this article and then WAIT 2-3 hours.
Second, change your domain in the Podpage Dashboard
Go to https://www.podpage.com/setup-domain and click Edit on the domain you already entered

Then replace it with the new domain

Third, set your old domain to forward to the new domain in your registrar
Every registrar (GoDaddy, Google, etc...) does this differently, but generally you want your forwarding settings to be:
Permanent (301 Redirect) should be ON. This will tell Google to index the new domain.
Masking should be OFF
Forward Path should be ON. This will make sure that olddomain.net/episodes → newdomain.com/episodes
SSL should be ON. This will make sure anyone going to the old domain at http:// or https:// will be forwarded