Site Cache
To increase the performance of the site, a caching plugin called WP Super Cache is installed and activated. This creates optimized versions of most pages that can be loaded faster than a standard WordPress page. When changes to a page are made, the cached version of the page should be refreshed so all new changes are immediately visible on the site.
If you happen to run into an instance where a change you made is not being reflected on the live site, a good first step would be to clear the site's cache completely to see if that resolves the problem. To do this, navigate to Settings → WP Super Cache and click the Delete Cache button.