Two tools dominate self-hosted DNS ad blocking on home networks: Pi-hole and AdGuard Home. Both intercept DNS queries before they reach your devices, silently dropping requests to ad servers, trackers, and malware domains. In 2026 the gap between them has widened — AdGuard Home has matured into a full encrypted-DNS stack while Pi-hole remains the community favourite with the deepest tutorial ecosystem. Which one belongs on your network depends on what you actually need, and the answer is less obvious than most comparison posts admit.

What These Tools Actually Do

When a device on your network resolves a domain, it sends a DNS query to a resolver. DNS-level blocking works by positioning your own resolver between devices and the internet: when a query arrives for a known ad domain like doubleclick.net or googletagservices.com, the blocker returns a null response — either NXDOMAIN or 0.0.0.0 — and the connection never happens. Unlike browser extensions, this covers every device on your network without any software installed on the device itself: smart TVs, gaming consoles, IoT sensors, phones, and laptops all benefit from one deployment. The trade-off is that it blocks by domain only, not by URL path — a banner served from the same domain as legitimate content won't be caught, which is why YouTube ads survive DNS blocking.

Installation and Hardware Requirements

Both tools run on any Linux machine, a Raspberry Pi, or inside Docker. A Raspberry Pi 4 or Pi 5 is the classic deployment target, but either tool runs equally well in a Docker container on a NAS, a home server, or a spare Intel mini-PC. Assign a static IP to the host before installing — both tools will warn you if DHCP is active, but a mid-session IP change after deployment breaks your router's DNS settings silently.

Pi-hole Installation

Pi-hole's one-line installer handles all dependencies on Debian, Ubuntu, Fedora, and Raspberry Pi OS. The interactive wizard covers upstream DNS selection, admin password, and logging verbosity. The installer drops dnsmasq, Lighttpd, and PHP-FPM onto the system — a meaningful footprint compared to AdGuard Home's single binary.

curl -sSL https://install.pi-hole.net | bash # Verify the service is running pihole status # Rebuild the blocklist database after first install pihole -g # Docker alternative docker run -d --name pihole \ -p 53:53/tcp -p 53:53/udp -p 80:80 \ -e TZ="America/Vancouver" \ -v /etc/pihole:/etc/pihole \ -v /etc/dnsmasq.d:/etc/dnsmasq.d \ pihole/pihole:latest

AdGuard Home Installation

AdGuard Home ships as a statically-linked Go binary — no PHP, no Lighttpd, no dnsmasq required. The install script extracts it, creates a systemd service, and starts a setup wizard on port 3000. After initial configuration it binds to port 80 (or 443 with your own TLS certificate). The entire application state lives in two directories: a work directory for the database and a conf directory for YAML config.

curl -s -S -L https://raw.githubusercontent.com/AdguardTeam/AdGuardHome/master/scripts/install.sh | sh # Service control sudo /opt/AdGuardHome/AdGuardHome -service start sudo /opt/AdGuardHome/AdGuardHome -service status # Docker alternative docker run -d --name adguardhome \ -p 53:53/tcp -p 53:53/udp -p 80:80 -p 3000:3000 \ -v /opt/adguardhome/work:/opt/adguardhome/work \ -v /opt/adguardhome/conf:/opt/adguardhome/conf \ adguard/adguardhome:latest

Encrypted DNS: DoH, DoT, and DoQ

This is the most consequential architectural difference between the two tools in 2026. AdGuard Home supports DNS-over-HTTPS, DNS-over-TLS, and DNS-over-QUIC as both upstream resolvers and as servers. That second part is what matters: your devices can query AdGuard Home directly over encrypted DNS without any additional software. On Android 9 and later, go to Settings → Network → Private DNS, enter your AdGuard Home hostname, and every app on that phone now uses your home DNS blocker over an encrypted channel — even when connected to mobile data over a VPN, depending on your setup.

Pi-hole has no native encrypted DNS serving. It listens on plain port 53 only. To get encrypted upstreams you need a companion daemon: unbound for fully recursive local resolution or dnscrypt-proxy to forward to a DoH or DoT provider. This works and is well-documented in Pi-hole's official guides — but it is no longer one tool. It is two daemons with separate configs, separate systemd units, and separate failure modes. If you are starting fresh in 2026 and encrypted DNS matters to you, that distinction is worth taking seriously.

💡 Browsers with built-in DNS-over-HTTPS — Chrome, Firefox, Edge — bypass your local DNS blocker entirely by default. To close this gap, either disable DoH in each browser or run AdGuard Home as your household DoH endpoint and point the browser at it. After making changes, use our DNS Propagation Checker to confirm what resolver your queries are actually reaching from outside your network.

Blocklist Management and Filter Syntax

Pi-hole uses the gravity system: it downloads configured adlists (URLs to hosts-format blocklists), merges them into a single SQLite database, and queries that database for every DNS request. Running pihole -g regenerates gravity. The default ships with StevenBlack's combined hosts file. You add more lists via the admin UI at Group Management → Adlists. Pi-hole supports hosts-format lists only — one domain per line, optionally prefixed with an IP address.

AdGuard Home supports both hosts-format lists and AdBlock syntax. AdBlock syntax is significantly more expressive: @@||domain.com^ whitelists a domain with override capability, ||domain.com^$important forces a block that can't be whitelisted below it, and regex patterns let you match entire TLD groups or subdomain patterns. This lets AdGuard Home use the same filter lists uBlock Origin uses — EasyList, EasyPrivacy, AdGuard's own DNS filter — without the maintainer having to produce a separate hosts-format version. In practice this means fewer false positives, because the lists can encode nuanced rules that a flat hosts file cannot express. A hosts file either blocks a whole domain or it doesn't.

Both tools show a live query log with domain, client IP, block status, and response time. AdGuard Home's query log is searchable and filterable directly in the React UI without touching SSH. Pi-hole's query log is at Tools → Query Log in the PHP admin panel — functional, but slower to load on networks generating thousands of queries per hour. Use our DNS Lookup tool to verify that a specific domain resolves correctly through your blocker before rolling it out to your whole network.

Performance and RAM on 2026 Hardware

On a Raspberry Pi 5 with 4 GB RAM, both tools handle normal household DNS load — under 300 queries per minute — without measurable latency impact. Benchmarks on a Pi 5 show median query time of 1–3 ms for cached responses and 20–60 ms for uncached forwarded queries on both tools. Neither is a bottleneck at home scale.

Where AdGuard Home has a real edge is RAM efficiency. Pi-hole carries Lighttpd and PHP-FPM for its admin UI, pushing idle RAM consumption to roughly 75 MB. AdGuard Home runs as a single Go binary with its own embedded HTTP server at around 35 MB idle. On a NAS or shared Docker host where RAM is divided across many containers, this delta adds up. On dedicated Pi hardware with gigabytes free, it does not matter in practice.

IPv6 Support in 2026

IPv6 adoption has accelerated. Many ISPs in Canada, the UK, Australia, and most of Europe now assign IPv6 addresses by default, and home routers increasingly distribute IPv6 DNS via Router Advertisements alongside DHCPv4. Both tools block AAAA records for listed domains, but the operational details differ.

Pi-hole requires you to set both an IPv4 and an IPv6 listening address explicitly. If your router is distributing IPv6 DNS via RA that points to a different resolver, Pi-hole won't intercept those queries — devices will bypass it silently on the IPv6 path. You need to update your router's RA configuration to advertise Pi-hole's IPv6 address, or disable IPv6 DNS in the RA settings entirely and rely on DHCPv6 alone.

AdGuard Home listens on both stacks by default with no extra configuration. Its query log labels IPv6 clients distinctly, which makes it immediately obvious when a device is bypassing the blocker on its v6 address. If you are on a dual-stack or IPv6-dominant network, AdGuard Home's out-of-box behaviour reduces the number of things that can go wrong silently.

DNSSEC Validation

DNSSEC lets resolvers verify that DNS responses haven't been tampered with in transit. According to the DNSSEC specifications (RFC 4033), full validation requires a recursive resolver that performs chain-of-trust verification — a forwarder that passes the AD flag through is not the same thing as a validator.

Pi-hole is a forwarder by default and cannot validate DNSSEC chains itself. It relies on the upstream resolver to validate and set the AD flag, then passes that flag to clients. For genuine DNSSEC validation at home, pair Pi-hole with unbound as the upstream — unbound does full recursive resolution with local DNSSEC validation. This is Pi-hole's recommended approach and it works well, but again it adds a second daemon to maintain.

AdGuard Home enables DNSSEC via Settings → DNS settings → DNS server configuration → Enable DNSSEC. When enabled, AdGuard Home sets the DO bit on upstream queries and checks the AD flag on responses from the upstream DoH or DoT provider. It does not do full recursive validation internally — it trusts the upstream (Cloudflare, Google, NextDNS) to validate. For most home deployments pointing at a reputable DoT provider, this is sufficient protection against spoofing on the upstream path.

CLI Verification After Deployment

After pointing your router's DNS at the blocker, verify the setup from a device on the network. Replace 192.168.1.x with your blocker's actual IP.

# Should return 0.0.0.0 or NXDOMAIN — domain is blocked dig @192.168.1.x doubleclick.net # Should return a real A record — domain is allowed dig @192.168.1.x google.com # Check upstream latency dig @192.168.1.x cloudflare.com +stats | grep "Query time" # Windows equivalent (Command Prompt or PowerShell) nslookup doubleclick.net 192.168.1.x nslookup google.com 192.168.1.x

On Linux with systemd-resolved, verify which DNS server the system is actually using — it may not be using your manually configured address if resolved is intercepting queries:

resolvectl status resolvectl dns eth0 # Pi-hole built-in diagnostic tools pihole status pihole -c # live chronometer stats in terminal pihole -t # tail the live DNS query log pihole -q doubleclick.net # check if domain is in the blocklist

Pointing Your Router and Devices at the Blocker

Set DNS at the router level so every device benefits automatically without individual configuration. The exact path varies by router brand and firmware generation.

  • Asus (asusrouter.com or 192.168.50.1): Advanced Settings → LAN → DHCP Server → DNS Server 1 → enter the blocker IP. For DoT with AdGuard Home, go to WAN → Internet Connection → DNS Privacy Protocol.
  • TP-Link (tplinkwifi.net or 192.168.0.1): Advanced → Network → DHCP Server → Primary DNS. On newer Deco mesh firmware: More → Advanced → LAN → DHCP.
  • Netgear (routerlogin.net or 192.168.1.1): Advanced → Setup → Internet Setup → Domain Name Server (DNS) Address → Use These DNS Servers → set Primary DNS.
  • Linksys (linksyssmartwifi.com or 192.168.1.1): Router Settings → Local Network → DHCP Reservation → DNS 1.
  • Eero (Eero app only, no web UI): Network Settings → Advanced Settings → DNS → Custom DNS → enter the blocker IP. Disable Eero's built-in content filtering if enabled — it intercepts DNS before your Pi-hole or AdGuard Home can see it.
  • OpenWrt: Network → DHCP and DNS → General Settings → DNS forwardings → add the blocker as /#/192.168.1.x. Or edit /etc/config/dhcp and add option server '192.168.1.x' under the dnsmasq block.
  • DD-WRT: Setup → Basic Setup → Network Setup → Static DNS 1 → enter the blocker IP. Uncheck the "Use DNSMasq for DNS" option if you want the router to forward rather than cache.

For individual devices when router-level configuration is not possible: Windows — Settings → Network and Internet → Ethernet or Wi-Fi → DNS server assignment → Manual. macOS — System Settings → Network → select interface → Details → DNS tab. Linux (systemd-resolved) — edit /etc/systemd/resolved.conf, set DNS=192.168.1.x, then run sudo systemctl restart systemd-resolved. iOS — Settings → Wi-Fi → tap the network name → Configure DNS → Manual. Android 9+ — for plain DNS, set it per-network in Wi-Fi details; for AdGuard Home's DoT endpoint, use Settings → Network and Internet → Private DNS → Private DNS provider hostname.

Which Tool Fits Your Setup

This is not a case where one tool is universally better — they are optimised for different priorities and different operators.

Choose AdGuard Home if:

  • You want native DoH, DoT, or DoQ without running a second daemon like unbound or dnscrypt-proxy
  • You want Android devices to use encrypted DNS via Private DNS pointed at your home server
  • You prefer AdBlock-syntax filter lists with finer-grained whitelist and block rules
  • You are on Docker or a constrained host and want a lighter RAM footprint
  • You want a responsive, mobile-friendly UI that doesn't require SSH for routine tasks
  • Your network has IPv6 clients and you want dual-stack handling that works correctly without extra configuration

Choose Pi-hole if:

  • You want the largest community, the most existing tutorials, and the most forum answers for edge cases
  • You are already running unbound for recursive DNS and want to add blocking without changing your stack
  • You need complex per-client group policies and blocklist segmentation — Pi-hole's group management system is more mature
  • Your team is already familiar with Pi-hole's admin paths and changing tools carries organisational cost
  • You run a small business or rental network where the number of community-vetted setup guides matters for onboarding new admins

Common Misdiagnoses

These are the errors that consume hours of troubleshooting time because the symptom points the wrong direction:

  1. Ads still showing after a successful setup: The most common cause in 2026 is browser-level DNS-over-HTTPS. Chrome enables DoH automatically and routes DNS through Cloudflare or Google, bypassing your local resolver entirely — the query never reaches Pi-hole or AdGuard Home. Fix in Chrome: Settings → Privacy and Security → Security → Use secure DNS → disable it or enter your AdGuard Home DoH endpoint. Fix in Firefox: Settings → General → Network Settings → Enable DNS over HTTPS → disable or change the provider.
  2. Devices not using new DNS after you change the router: Existing DHCP leases cache the old DNS settings until they expire. Force a renewal: on Windows run ipconfig /release then ipconfig /renew in an elevated command prompt; on macOS go to System Settings → Network → [interface] → Details → TCP/IP → Renew DHCP Lease; on Linux run sudo dhclient -r && sudo dhclient; or simply reboot the device.
  3. HTTPS sites loading slowly after enabling DNSSEC: DNSSEC validation adds upstream round-trips for signed zones. Check upstream resolver latency with dig +stats google.com @1.1.1.1 and dig +stats google.com @your-blocker-ip. If the blocker adds more than 20 ms over the direct upstream, your upstream resolver itself may be congested — switch to a geographically closer DoT or DoH provider.
  4. Pi-hole showing 0% blocked after a Docker container restart: The gravity database is wiped or not persisted because the volume mounts weren't set correctly. Run pihole -g inside the container to rebuild gravity, and verify your docker-compose.yml has persistent volume mounts for both /etc/pihole and /etc/dnsmasq.d.
  5. IPv6 clients bypassing the blocker: Your router is distributing an IPv6 DNS address via Router Advertisement that points somewhere other than your blocker. Check your router's RA / DHCPv6 settings. This is a silent failure — devices will appear in the query log via IPv4 but all their IPv6 traffic goes unfiltered.

Preventing Problems After Deployment

A few operational habits keep DNS blockers running without becoming a maintenance burden:

  • Assign the static IP via your router's DHCP reservation table (binding the blocker's MAC to a fixed IP), not via a static IP configured on the host itself. This survives OS reinstalls without breaking your router's DNS settings.
  • Configure a secondary DNS address in your router — either a public resolver like 1.1.1.1 or a second instance of your blocker — so DNS doesn't fail completely if the primary goes down for a reboot or update.
  • Monitor port 53 with Uptime Kuma, healthcheck.io, or a cron job that runs a test query and alerts via Telegram or email if it fails. Silent DNS failure is the worst kind — everything appears broken and nobody knows why.
  • Schedule regular blocklist updates: Pi-hole via a weekly cron entry running pihole -g, AdGuard Home via Filters → DNS blocklists → Update interval in the UI.
  • Before updating router firmware, note the DNS server IPs configured in your DHCP settings. Many routers silently reset custom DNS to ISP defaults after a firmware upgrade, which re-enables tracking and ads for every device on the network until someone notices.