The logic behind searching for a cracked key or a free license is sound from a consumer perspective. Net Optimizer offers a "free" version that is often ad-laden and feature-restricted. The "Pro" version, gated by a license key, promises the heavy artillery: specialized DNS servers, no ads, and supposedly prioritized traffic routing.
There are several ways to obtain a Net Optimizer license key: net optimizer license key
Here is an exploration of why this specific search term is so interesting, looking beyond just the software itself. The logic behind searching for a cracked key