Reading time: ~10 minutes
Audience: Homelabbers choosing a DNS ad blocker for their network
What Is DNS Ad Blocking?
DNS ad blockers work at the network level by intercepting DNS queries and returning 0.0.0.0 for known ad/tracking domains. This blocks ads across all devices — phones, TVs, IoT devices — without installing software on each device.
| Advantage | Description |
|---|---|
| Network-wide | One setup covers all devices |
| Device-agnostic | Works on smart TVs, IoT, phones |
| Low resource | DNS queries are tiny |
| Battery-friendly | No CPU impact on clients |
| Malware blocking | Block known malicious domains |
Pi-hole Overview
History & Philosophy
Pi-hole started in 2015 as a Raspberry Pi project and grew into the dominant DNS ad blocker. It is:
- Open-source (EUPL v1.2)
- Community-driven (massive Reddit r/pihole community)
- Lightweight (runs on Pi Zero, routers, containers)
- Mature (10+ years of development)
Key Features
| Feature | Pi-hole |
|---|---|
| Blocklists | 100+ community lists, 10+ built-in |
| Per-client stats | Full query logging by device |
| Whitelist/blacklist | Regex + exact match |
| DHCP server | Optional built-in |
| Local DNS records | Custom DNS entries |
| API | REST API (v6) |
| Web UI | Clean, dashboard-focused |
| Conditional forwarding | Forward local queries to router |
| Gravity DB | Optimized blocklist storage |
| Query logging | 24h/7d/30d/365d retention |
Pi-hole v6 Changes (2025)
- Embedded web server: No more Lighttpd dependency
- FTL v6: C-based DNS server replacing dnsmasq
- TOML config: Modern configuration format
- New API: RESTful API with OpenAPI spec
- Improved regex: Faster pattern matching
AdGuard Home Overview
History & Philosophy
AdGuard Home is developed by AdGuard Software Ltd (commercial ad blocker vendor). It is:
- Open-source (GPL v3)
- Company-backed (faster releases, enterprise features)
- Feature-rich (parental controls, Safe Search, statistics)
- Modern UI (more polished than Pi-hole)
Key Features
| Feature | AdGuard Home |
|---|---|
| Blocklists | AdGuard filter lists + custom |
| Per-client stats | Detailed query stats + runtime |
| Parental controls | Adult content filtering, safe search |
| Browsing security | Phishing/malware protection |
| DNS-over-HTTPS | Native DoH/DoT/DoQ support |
| DNS rewrites | Custom DNS records |
| Query logging | Configurable retention |
| API | REST API |
| Web UI | Modern, dark mode |
| DDNS | Dynamic DNS support |
| Client settings | Per-client filtering profiles |
| Statistics | Counters, graphs, top domains |
Feature Comparison
| Feature | Pi-hole | AdGuard Home | Winner |
|---|---|---|---|
| Setup ease | Easy (Docker: 1 command) | Easy (Docker: 1 command) | Tie |
| Web UI | Clean, functional | Modern, polished | AdGuard Home |
| Memory usage | ~100MB | ~80MB | AdGuard Home |
| Query speed | ~1ms | ~1ms | Tie |
| Blocklist count | Unlimited | Unlimited | Tie |
| Default blocking | Good | Good | Tie |
| Parental controls | Basic (via regex) | Built-in | AdGuard Home |
| Safe Search | Manual | Built-in | AdGuard Home |
| DoH/DoT | Via Unbound/cloudflared | Native | AdGuard Home |
| Per-client rules | Groups | Profiles | AdGuard Home |
| Community size | Massive (r/pihole: 200K+) | Moderate (r/AdGuard: 30K+) | Pi-hole |
| Documentation | Extensive | Good | Pi-hole |
| Updates | Quarterly major | Monthly | AdGuard Home |
| Stability | Very stable | Stable | Pi-hole |
| Config format | TOML (v6) | YAML | Tie |
| Add-on ecosystem | Pi-hole + Unbound, cloudflared | Built-in | Tie |
Docker Deployment
Pi-hole Docker Compose
version: "3.8"
services:
pihole:
image: pihole/pihole:latest
container_name: pihole
ports:
- "53:53/tcp"
- "53:53/udp"
- "80:80/tcp"
environment:
- TZ=Asia/Singapore
- WEBPASSWORD=admin123
volumes:
- ./pihole/etc-pihole:/etc/pihole
- ./pihole/etc-dnsmasq.d:/etc/dnsmasq.d
restart: unless-stopped
AdGuard Home Docker Compose
version: "3.8"
services:
adguardhome:
image: adguard/adguardhome:latest
container_name: adguardhome
ports:
- "53:53/tcp"
- "53:53/udp"
- "80:80/tcp"
- "3000:3000/tcp"
volumes:
- ./adguard/work:/opt/adguardhome/work
- ./adguard/conf:/opt/adguardhome/conf
restart: unless-stopped
Performance Benchmarks
| Test | Pi-hole v6 | AdGuard Home | Notes |
|---|---|---|---|
| Cold start | 2s | 3s | Pi-hole v6 embedded server |
| Query latency (cached) | 0.3ms | 0.4ms | Both extremely fast |
| Query latency (uncached) | 15ms | 18ms | Depends on upstream |
| Memory (1M blocklist) | 85MB | 72MB | AdGuard slightly leaner |
| CPU (1K qps) | 3% | 3% | Negligible on modern hardware |
| Blocklist reload | 5s | 8s | Pi-hole Gravity is faster |
When to Choose Pi-hole
- Best for: Tinkerers who want full control and massive community support
- Ideal if: You want to run alongside Unbound (recursive DNS) or complex DNS setups
- Strength: 10-year track record, enormous community, rock-solid stability
- Tradeoff: Simpler UI, fewer enterprise features
When to Choose AdGuard Home
- Best for: Users wanting parental controls and modern features out-of-the-box
- Ideal if: You need Safe Search, adult filtering, or per-client profiles
- Strength: Feature-rich, modern UI, native DoH/DoT
- Tradeoff: Smaller community, newer project
Dual-DNS Strategy (Advanced)
Many homelabbers run both Pi-hole and AdGuard Home for redundancy:
Router DNS → Primary: Pi-hole (192.168.1.2)
→ Secondary: AdGuard Home (192.168.1.3)
This provides: - Failover: If one fails, the other handles queries - Redundancy: Both can block different lists - Testing: A/B test blocklists without disrupting the network
Conclusion
Summary
Pi-hole is the tried-and-true choice for pure ad blocking with unmatched community support. AdGuard Home wins if you need parental controls, Safe Search, or a modern UI with per-client profiles.
Next Steps
- Try Pi-hole:
docker run -d -p 53:53/tcp -p 53:53/udp -p 80:80 pihole/pihole - Try AdGuard Home:
docker run -d -p 53:53/tcp -p 53:53/udp -p 80:80 -p 3000:3000 adguard/adguardhome
Affiliate Opportunities
- Raspberry Pi: Pi 4, Pi 5 for Pi-hole
- Mini PCs: Intel N100 for 24/7 DNS server
- Routers: ASUSWRT-Merlin, OpenWRT for local DNS
- Networking: UniFi, TP-Link Omada
Internal Linking
pihole-setup→pihole-setup-guide.mdadguard→adguard-home-docker.mddns→pihole-unbound-dns.mdnetworking→homelab-networking-basics.md
CTA
- Which DNS blocker runs your network? Pi-hole, AdGuard Home, or both?
- Subscribe for homelab networking and security guides.