By default, there's a "Podcast website by Podpage" link at the bottom of every website. You can make changes to make it more personal to your website.
Add your affiliate link to your Podpage
If you've joined the Podpage Affiliate Program, you can turn this into an affiliate link and get paid when people click it and sign up for an account.
Go to Website → Settings → Advanced Settings → Add your Podpage Affiliate Link to your website and follow the instructions.
Hide the link
If you'd like to remove the link completely, just go to Website → Settings → Advanced Settings → Hide Branding