You can stop embed access without deleting your form.
How to do it:
You have 3 options to disable the embedded form:
Option 1: Remove the embed code from your website.
Option 2:
- Open the form from the Dashboard.
- Go to Embed.
- Remove the domain from the Allowed Domains list.
Option 3:
- Open the form from the Dashboard.
- Go to Share.
- Change the form privacy setting to Private.
After applying any of these options, save the changes and verify that access to the embedded form is blocked.