This is a website that I bought a few years ago.
I use arl.dk to test my IT-knowledge.
I host my own mail servers and web servers in my own hypervisor environment with Proxmox, where I made a cluster of 2 nodes.
Some of my projects are also hosted in a Windows VPS, mainly projects that needs a high availability.
Almost everything that makes sense to run trough Cloudflare runs trough cloudflare.