Keyboard controls:

F5 — normal soft refresh.

Ctrl + 5 — site-level hard refresh.

Ctrl + F5 — hard refresh when the browser allows the plugin to intercept it.

Command + 5 on Mac — hard refresh.

The hard refresh:

Adds a new timestamp to the page URL to bypass cached copies.

Reloads the page from the live server.

Clears local storage and session storage for Vacation Trip Guides.

Deletes browser Cache Storage belonging to the website.

Unregisters service workers that could serve old files.

Helps reload fresh images, CSS, JavaScript, and page content.

Browser limitation: A WordPress plugin cannot erase a visitor’s entire browser cache for every website. 

Browsers block websites from doing that for security and privacy. 

This plugin performs the strongest cleanup permitted for the current website.