Autoptimize, Litespeed Cache and WP Cloudflare Super Page Cache in WordPress combined works. But clear cache often messes up site.

1

Varnish

You need to be using Varnish Cache for the Varnish Cache plugin to do anything.

#Proxy Server #Key-Value Database #Proxy 18 social mentions

2

Redis

You need to be using Redis for the Redis plugin to do anything.

#Key-Value Database #NoSQL Databases #Databases 216 social mentions

3

OpenLiteSpeed

You need to be using Litespeed or OpenLitespeed for the Litespeed plugin to do anything.

#Web Servers #Web And Application Servers #HTTP/2 Web Server 3 social mentions