If you have any questions, please reach out to us via email or twitter. Yes, we do reply.
You can also join our mailing list here to receive product updates: CleanBrowsing Mailchimp
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If you found any site being incorrectly blocked or incorrectly allowed, please email us and we will fix it right away. You can also submit a fix request through categorify.org, which is what we use as our rating database.