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The Danger of Content Blocking Measures by DNS Recursive Resolvers

DNS recursive resolvers play a crucial role in the functioning of the internet by translating domain names into IP addresses. However, they should not act as gatekeepers for content, which can be subjective and varies from jurisdiction to jurisdiction. Users of Quad9 opt-in to our service and want the cyber protection that we enable for them. Blocking a domain for distributing malware is motivated by the desire to protect users from malicious or harmful content, such as viruses, phishing scams, or other threats. These types of protective DNS services blocking a domain for malware is a form of user opt-in filtering. The intention is to protect users from harm and does not necessarily involve restricting access to specific types of content.