AdAvoid DNS Policy
DNS Filtering & Limitations Policy
What AdAvoid DNS blocks, what each resolver mode does, and why DNS filtering is best-effort.
Last updated: April 28, 2026
Resolver Modes
- Default mode blocks ads, trackers, and malware using AdAvoid filter lists.
- Family mode includes Default protections plus adult-content filtering and best-effort safe search.
- Unfiltered mode resolves DNS normally without intentional content filtering.
DNS-Level Limits
DNS filtering works at the domain-name level. It cannot inspect page content, app content, encrypted traffic content, or traffic that does not rely on DNS.
False Positives and False Negatives
False positives and false negatives can happen. A legitimate domain may be blocked by a filter list, and an unwanted domain may be missed until a filter list is updated.
Third-Party Lists
Some filtering categories may depend on third-party blocklists while AdAvoid builds its own DNS-optimized lists. Third-party lists may be overbroad, incomplete, unavailable, or changed by their maintainers.
Family Mode Limits
Family mode is not a guaranteed child-safety, school-compliance, CIPA, COPPA, or parental-control compliance product. Safe search depends on search engines and platforms and may change outside AdAvoid's control.
Reporting Filtering Issues
Users should be able to report incorrect blocks and domains they believe should be blocked through a monitored AdAvoid contact channel.