Let’s recap:

If the quest for a free licence key proves unsuccessful, purchasing one directly from AdGuard or an authorized reseller is a straightforward and secure alternative. AdGuard offers various subscription plans, catering to different needs and budgets.

AdGuard uses a server-side validation system. Unlike old-school software (e.g., Windows 95), AdGuard checks the license key against its official servers in real-time. If a key is used on more devices than allowed or appears on a public blacklist, it becomes useless within hours.

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