In reply to Sven Lehnert.

Good question! We've build something called "CommunityCaching"

Page Caching - Visitors or logged out users get served a full cached static HTML page directly via NGINX. This means WordPress/PHP is not even loaded for these visitors, resulting in excellent performance even under high load.

Object Caching - Expensive database queries are cached via Redis Object Caching taking further strain of the MySQL database and improving performance for your logged in users!

Finally we have CloudFlare integration offering their Rocket loader (async script loading), CDN/Caching for your popular assets and their highly performant DNS network!

You can read more here Sven! https://wefoster.co/platform/performance