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AdGuard Home
GPL-3.0AdGuard Home replaces cloud DNS resolvers like NextDNS with a self-hosted sinkhole that keeps query logs and domain filtering private on local hardware.
Open-source alternative to — compare it against:
Overview
A modern home network connects dozens of appliances, streaming devices, and phones that emit continuous telemetry requests. AdGuard Home intercepts those DNS queries directly at the local gateway before traffic leaves the perimeter. As an on-premises DNS sinkhole, it blocks ads, trackers, and malicious domains across every device without requiring endpoint software.
Why AdGuard Home instead of NextDNS
NextDNS provides cloud-managed DNS filtering, parental controls, and blocklists with zero server maintenance. That convenience has trade-offs: every home DNS lookup travels across the internet to a third party. NextDNS caps queries on its free tier, and retaining detailed logs means entrusting household browsing habits to cloud infrastructure.
AdGuard Home keeps the entire resolution pipeline inside the physical network. Queries resolve locally or forward through encrypted upstream connections such as DNS-over-HTTPS, DNS-over-TLS, or DNS-over-QUIC. Query logs, client rules, and blocklists stay on local storage with no volume caps. The trade-off is operational ownership: host hardware failures take down network DNS unless a redundant node exists, and protecting roaming mobile devices requires a self-managed VPN.
What it does well
- Encrypted upstream support for DNS-over-HTTPS, DNS-over-TLS, DNSCrypt, and DNS-over-QUIC, shielding outbound queries without extra proxy daemons.
- Integrated DHCP server with static leases and domain mappings, letting admins manage addressing and local hostname overrides in one place.
- Per-client configuration rules that apply specific blocklists, custom upstreams, and parental filters by IP, subnet, or MAC address.
- Local query logging and real-time statistics, giving full visibility into device lookups without sending metadata to external cloud servers.
- Broad rule syntax compatibility supporting Adblock-style filters, hosts files, and regular expressions for fine-grained blocking controls.
- Single static Go binary that runs natively or in containers, maintaining an idle memory footprint under 100 megabytes.
Limitations
- Multi-instance synchronization is not built in; replicating configurations and rules across primary and secondary failover servers requires community tools like adguardhome-sync.
- In-stream advertisements that share domains with primary media content, such as video ads on YouTube or Twitch, cannot be blocked at the DNS layer.
