Plesk phones home constantly. If their licensing server detects a key being used on 10,000 servers (a classic sign of a leaked key), they will instantly revoke it. You will wake up to a error and no access to your websites.
sh <(curl https://autoinstall.plesk.com/one-click-installer || wget -O - https://autoinstall.plesk.com/one-click-installer) plesk free licence key
Once you receive your trial activation code, follow these steps within your Plesk panel: Plesk Free Trial | Plesk License For Free Webhosting Plesk phones home constantly
However, if you are managing multiple clients or need advanced email features, the free license will not cut it. Do not risk your server security on pirated keys. Instead, either budget for the Web Pro Edition or switch to an open-source alternative like CyberPanel. plesk free licence key