We have an OVH dedicated server using Cloudflare as our DNS (NOT Plesk)
Running CentOS Linux 7.7.1908 (Core), Plesk Obsidian 18.0.20 Update #2 ,
last updated at Nov 8, 2019 04:17 PM
All sites are running WordPress, latest php, etc.
All our domains are on dedicated IPs running full SSL...