How to prevent direct linking to a confirmation page

I've done this with other platforms. I'm trying to prevent users from sharing the link directly to a confirmation page containing an asset. I'm aware that one option is emailing the asset, but given the circumstances I'd like to just prevent this altogether.

Is this possible in Marketo? Ideally, when someone clicks a link to a confirmation page, I'd like that to direct them to the landing page containing the form. I do not want to create a permanent redirect so that those who do actually fill out the form never reach the confirmation page. I only want to prevent direct linking to the confirmation page.

Any suggestions?

Thanks!