Which technology does my VPS use (KVM or LXC)

The vast majority of VPS currently running on PulseHeberg use KVM technology. No LXC VPS has been activated since mid-2019.

You can check this very easily by looking at the name of your plan in your customer area. If you see the mention "VPS Cloud", then it is indeed a KVM VPS.

If you see one of the following mentions: "VPS Start 2019 LXC (offre dépréciée)", "VPS Linux Standard 2018 LXC (Offre dépréciée)" or "VPS Linux Storage 2018 LXC (Offre dépréciée)", then your VPS uses LXC technology.