License Key Validator and Manager

Legitimate license keys are often shared on public forums. To mitigate this, Gravity Forms employs domain limiting.

The "License Key" serves as the primary vector for Access Control and Digital Rights Management (DRM) in this context. Unlike traditional desktop software that may utilize hardware-based dongles or complex obfuscation, WordPress plugins typically use remote API validation. This paper details how Gravity Forms implements this validation and the resultant security landscape.

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