If a View-Only URL gets into the wrong hands, quickly revoke it's permissions by expiring the link. Anyone with the expired link can no longer access the page. However, new shared links can be generated afterwards.
Step 1 – Access Sharing Menu
Go to the page you would like to share, then click the Share Icon ( 🔗 ).

Step 2 – Hover Over URL
Hover over the View-Only URL to display it's options.

Step 3 – Expire Link
Click the Expire Icon (ⓧ) to the right of the URL to revoke sharing access.
