Owner of a server

Dear @henri.martin welcome to the community!

Unfortunately, there is no verification process in place to add a server into the pool. So anybody can add any IP address (including yours) to the pool. (The pool will just automatically trim off those IP addresses that do not have running NTP service.)
Multiple possible verification options were discussed extensively at: https://community.ntppool.org/t/verification-step-to-add-a-server/