Can someone explain ServerPilot caching?

Maybe I’m missing it somewhere? maybe it’s self-explanatory? But I cannot find any information on what sort of server-side caching is implemented by ServerPilot. Is there any? Is the stack enough since NGINX is in front?

All I find in their documentation and in Google searches is to install WP Super Cache or WP Rocket…

I’ve tinkered with their system and with tools outside of their system. Varnish, of course, was one of the best options I found but dropped it due to my inability to get the VCL to create separate caches for desktop and mobile (which I need).

Default ServerPilot with WP Rocket is running OK but sometimes I get spikes of traffic (5000-10,000 concurrent users for hours) and things get a little hairy when that happens. Considering I’ve got a decently specced server and I’ve seen how Varnish can handle my resources AND I’ve read how NGINX can do basically what Varnish does… I feel like I am missing something.

So am I missing something in their setup? Are there like a few lines of code I should be adding to their configuration to make it fly?

I’m not a “real” sysadmin, but I can get by. Anyway, my whole point is… there seems to be no details as to what’s happenning in their stacks.

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Sorry I don’t know enough about ServerPilot but if you’re needing separate cache lines for mobile/PC devices, checkout It’s Varnish in the cloud with ready-made VCLs.