The domain activeoptimization.com, or more specifically, the subdomain front.activeoptimization.com is blocked by Malwarebytes because it belongs to a potentially unwanted program (PUP) called Driver Support. It is in use by this PUP as the install server.
Malwarebytes blocks access to this domain.
Should users wish to visit a blocked domain and exclude it from being blocked, they can add it to the exclusions list. Here’s how to do it.
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