The guest login page cannot be embedded.
To allow guests to access secure forms or tasks, share a direct link to your organization’s portal:
https://www.cognitoforms.com/yourorganizationname
Make sure to replace ‘yourorganizationname’ with your organization’s Cognito Forms URL – you can find this in your browser’s address bar when logged in.
You can also share an authenticated public link directly to the form (without embedding it).
Learn more about setting up Guest Access.