Here's how to add a top-level domain to your website or funnels, so you can use a custom domain for your site.
Navigate to Settings and scroll down to Domains.
Click on Add at the upper right corner.
Copy your domain name and paste it under Domain URL.
Select I also want to add www-version of the domain, then click Continue.
After, go to your custom domain.
Click on Advanced DNS, and copy the necessary details to connect it to your Thrive Funnels product account.
Once done, verify the connection.