In production, Waterhole pings a license validation service hourly. This service collects the license key, public domain info (domain name, IP address, etc.) and version numbers so we can validate them against your account.
If your license is invalid, Waterhole will show an admin notification telling you what's gone wrong.
Tampering with the outgoing API call will cause Waterhole to consider your license invalid. If that happens, you'll need to open a support request to reinstate your license.