DNSFilter is a cloud DNS service for security and content filtering. Its protective DNS blocks requests to known malicious domains, and its content filtering lets administrators control access by category. The website also lists roaming clients for devices used off-network. The service is hosted by the vendor: customers direct their DNS queries to the provider's resolvers rather than running a filtering server of their own.
DNSFilter, Inc. is a US company. Its privacy policy gives a Washington, DC address and states that the business is based in the United States. Because the provider is headquartered in the US, access by US authorities is the main sovereignty concern for European organisations. The policy says data may be stored in the United States and other countries, and it does not name EU or EEA data centres. It refers to European data protection law and to the EU-US Data Privacy Framework, but it names neither a data processing agreement nor standard contractual clauses, so organisations should check the processor terms and any European hosting options before use.