I was primarily referring to a server that sits in front of the Moodle application servers. Normally in a load balanced environment you would have NGINX/HAProxy or other load balancer in front of Moodle, and with NGINX or Varnish (and others) as well you can add a layer of caching for images/js/css that Moodle serves.
CDNs like Akamai/Cloudflare also do similar, so if you aren't able to manage the server installs yourself, these can normally work with managed/cPanel type services.
You will also never get the same performance out of managed cPanel hosting versus VPS type hosting, but that's a trade off you need to decide on with performace vs $$$.
CDNs like Akamai/Cloudflare also do similar, so if you aren't able to manage the server installs yourself, these can normally work with managed/cPanel type services.
You will also never get the same performance out of managed cPanel hosting versus VPS type hosting, but that's a trade off you need to decide on with performace vs $$$.