If you're already running Apache HTTP Server as your main web server or reverse proxy, you can also configure it to proxy your analytics. Start by adjusting your configuration as shown in the next step.
Step 1: Enable the required modules
sudo a2enmod proxy
sudo a2enmod proxy_http
sudo a2enmod ssl
Step 2: Update your config
Step 3: Adjust your deployed script
With the above config in place, you can change the script tag on your site as follows:
<script defer data-api="/api/event" data-domain="website.com" src="/js/script.js"></script>
That's it! You're now using a proxy.
Alternative reverse proxy written in PHP for shared hosting on Apache
As an alternative to the above, there's also a reverse proxy for Plausible Analytics written in PHP for shared hostings on Apache. See details here.