DNS Filtering & Policy
Content filtering, policy enforcement, and protective DNS implementation.
4 articles · ~31 min total · reads in order
How DNS Filtering Works
A conceptual explanation of how DNS filtering fits into the DNS resolution process, and what is actually happening when a domain is blocked.
DNS Filtering for Acceptable Use Policies
How DNS filtering turns acceptable use rules into domain-level policy decisions, including category controls, exceptions, identity context, and the boundaries of DNS-based enforcement.
Protective DNS and Compliance: Where DNS Fits in Security Frameworks
How current security guidance treats protective DNS, including explicit DNS filtering safeguards, outcome-based frameworks, federal requirements, and the evidence DNS can contribute to compliance programs.
How Domains Are Classified and Categorized
How domain classification systems combine lexical signals, website content, DNS and infrastructure data, threat intelligence, and newer reasoning models to decide what a domain represents and whether it poses risk.