Custom Code for making sure updated versions of websites are displayed

I am encountering again and again the situation that updated versions of Webflow sites are not being shown in customers browsers (and in the browsers of their customers). Of course I can ask them to refresh and clear the cache but that’s going to far for the customer’s customers. Like when I visit a newspaper website I always see the latest version.
Is there a plugin or code snippet that would do the trick?
Help is very much appreciated!