Your Pi-hole Is Lying to You (Sort Of)
You set up Pi-hole. You blocked 150,000 ad domains. You watched the query graphs light up. You felt the power. And then you left the house, opened Twitter on your phone, and got absolutely demolished by ads because your phone was now on LTE and your Pi-hole was at home, faithfully blocking ads for zero devices.
Nobody mentions this when you’re deep in the self-hosting rabbit hole: a DNS ad-blocker only works when your device is actually using it. The moment your phone walks out the door, it’s flying blind and wide open.
That’s the gap NextDNS exploits. And honestly? They do it well.
This isn’t a hit piece on self-hosted DNS. Pi-hole and AdGuard Home are excellent and I run one myself. But there are real scenarios where a $1.99/month SaaS DNS service beats your homelab setup, and pretending otherwise is the kind of stubbornness that gives self-hosting a bad reputation.
Let’s do the actual comparison.
What NextDNS Actually Is
NextDNS is a cloud-hosted DNS resolver with filtering built in. You get a unique endpoint (like https://dns.nextdns.io/abc123), configure your devices to use it via DoH, DoT, or DoQ, and from that point on, all your DNS queries hit NextDNS servers instead of your ISP’s garbage resolvers.
What you get:
- Blocklists (OISD, EasyList, Steven Black, and about 50 others, pick your poison)
- Per-device configuration and analytics
- DNS-over-HTTPS, DNS-over-TLS, DNS-over-QUIC
- IPv6 support out of the box
- Parental controls with per-profile schedules
- iOS/Android/macOS/Windows native profiles (one click to install)
- Apple TV support (yes, really)
- Router-level DoT configuration
- Anycast infrastructure: queries hit a nearby PoP, not some single VPS in Ohio
Pricing:
- Free: 300,000 queries/month. That sounds like a lot until you have four devices and a smart TV doing background refreshes.
- Pro: $1.99/month or $19.90/year for unlimited queries on unlimited devices. That’s $1.66/month annual, less than a cup of coffee.
- Family plan covers up to 5 profiles, same price.
The free tier is fine for testing or a single low-traffic device. For a household, spring for the annual plan. It’s genuinely cheap.
What Self-Hosted DNS Looks Like
Pi-hole and AdGuard Home are the two mainstream options. Both run on a Raspberry Pi, a cheap mini PC, or a VM/container.
Pi-hole:
- FTLDNS under the hood (fork of dnsmasq)
- Excellent blocklist management, gravity database
- Web UI is a bit dated but functional
- DoH upstream requires cloudflared or a similar proxy
- Active community, years of blog posts and guides
AdGuard Home:
- Go binary, single executable, easier setup
- DoH/DoT/DoQ support built in: no extra proxy needed
- Better per-client stats and filtering rules out of the box
- Actively maintained by AdGuard (the company behind the browser extensions)
- Slightly more modern UI
For the self-hosted path, AdGuard Home is my current recommendation if you’re starting fresh. Pi-hole has more community resources, but AdGuard Home requires less glue code.
Either way, the setup looks roughly like this:
# AdGuard Home on Docker (the easy path)docker run -d \ --name adguardhome \ -p 53:53/tcp \ -p 53:53/udp \ -p 3000:3000/tcp \ -v /opt/adguardhome/work:/opt/adguardhome/work \ -v /opt/adguardhome/conf:/opt/adguardhome/conf \ --restart unless-stopped \ adguard/adguardhome:latestInitial setup runs on port 3000, then it moves to port 80/443 if you configure those. Point your router’s DHCP DNS option at the host IP, done.
The self-hosted reality check:
Your Pi-hole is only as available as your home network. If your router reboots during a power blip, DNS resolution fails until it comes back. If your Raspberry Pi SD card dies (and it will, eventually), DNS fails. If you’re traveling and your dog chews through a cable, your home DNS is gone.
And critically: your phone on LTE has no idea your Pi-hole exists.
When NextDNS Wins
Scenario 1: Phones That Leave the House
This is the big one. NextDNS installs as a DNS profile on iOS and Android that persists system-wide. On iOS:
- Go to nextdns.io, log in, create a profile
- Click “iOS” in the setup tab
- Download the
.mobileconfigprofile - Install it under Settings → General → VPN & Device Management
From that point, your iPhone routes DNS through NextDNS regardless of whether it’s on WiFi, LTE, or some hotel’s garbage network. No VPN required. No app running in the background. It just works.
This is genuinely hard to replicate with self-hosted DNS unless you’re running a VPN server and forcing all your family members to stay connected to it 100% of the time. That’s a losing battle.
Scenario 2: Family Members Who Don’t VPN
You can configure Tailscale with an exit node and pipe DNS through your home AdGuard Home instance. This is elegant and I respect it. You will also spend approximately four hours explaining to your spouse why they need to keep the Tailscale app running on their phone.
NextDNS profile installs in 30 seconds. It requires zero ongoing management from the user. The filtering just works in the background, everywhere, silently.
If your household contains people who use technology but don’t want to think about it, NextDNS is the right call.
Scenario 3: Travel
Coffee shop WiFi, hotel networks, airport lounges, these environments are noisy. Your DNS queries go through whatever DNS the network operator configured, which could be logging everything, redirecting NXDOMAIN to an ad page, or just generally terrible.
With NextDNS DoH, your DNS traffic is encrypted, goes to NextDNS’s infrastructure, and your blocklists follow you. You keep your ad blocking and tracker blocking regardless of the network you’re on.
Scenario 4: The Cost Math
Let’s be real: a Raspberry Pi 4 costs $55-80 new. SD cards die and you’ll replace them. Electricity (small, but not zero). Your time setting it up, maintaining it, debugging it when it breaks at 11pm.
NextDNS at $19.90/year for the whole family is not a meaningful budget line item. If you’re evaluating this purely on “cost of filtering DNS,” NextDNS wins.
When Self-Hosted Wins
You Already Have a Tailscale Tailnet
If you’re running Tailscale with MagicDNS and an exit node, you can route all device DNS through your home AdGuard Home already. Your phone, wherever it is, can use the tailnet’s DNS resolver.
# In your Tailscale admin panelDNS → Custom nameservers → [your AdGuard Home tailnet IP]Override local DNS: enabledAt that point, you have centralized logging, full control, and filtering everywhere, without paying NextDNS. The infrastructure cost is already paid by your existing Tailscale subscription (or free tier).
CNAME-Based Ad Insertion
Some analytics and ad platforms use CNAME flattening to make tracker domains appear as first-party subdomains. Your CDN delivers analytics.yourtrustedsite.com which CNAMEs to a third-party tracker.
Self-hosted AdGuard Home with CNAME blocking enabled handles this better than NextDNS in practice, because you control the resolution chain. NextDNS does have some CNAME protection, but it’s harder to tune aggressively.
Log Retention and Data Sovereignty
NextDNS keeps your query logs for 24 hours on the free plan and up to 2 years on paid plans. That’s actually pretty generous. But those logs are on their servers, subject to their privacy policy, and the queries pass through whatever infrastructure providers and anti-DDoS layers they have in front of their resolvers.
NextDNS’s privacy policy is public and readable. They’re not evil. But if your threat model includes “I don’t want a SaaS company to have my complete DNS query history,” self-hosted is the answer. Your logs stay on your hardware. You control retention. Nobody else touches them.
# AdGuard Home config: query log retentionquerylog: enabled: true file_enabled: true interval: 2160h # 90 days, because your NVMe can handle it size_memory: 1000 ignored: []Custom DNS and Local Network Services
Pi-hole and AdGuard Home let you define custom DNS records:
nas.home → 192.168.1.50proxmox.home → 192.168.1.10gitea.home → 192.168.1.25NextDNS supports some rewrite rules in the paid plan, but your local split-DNS setup is cleaner with a self-hosted resolver that has direct knowledge of your internal network.
The Hybrid Setup: Best of Both
Here’s what I actually run: AdGuard Home at home as the LAN DNS server, with NextDNS as the upstream DoH resolver.
This gives you:
- Local DNS caching and custom records from AdGuard Home
- NextDNS’s blocklists and anycast infrastructure for upstream resolution
- Double-layer filtering (AdGuard’s lists + NextDNS’s lists)
- Encrypted DNS upstream so your ISP can’t see your query destinations
Configure it in AdGuard Home’s settings:
Settings → DNS settings → Upstream DNS servers:
https://dns.nextdns.io/YOUR_PROFILE_IDReplace YOUR_PROFILE_ID with the ID from your NextDNS dashboard (looks like abc123).
Bootstrap DNS servers (needed to resolve the NextDNS hostname itself):
9.9.9.9149.112.112.112Enable “Load-balancing” mode or “Parallel requests” depending on your AdGuard Home version. Set your router DHCP to point at AdGuard Home. Done.
Your home network uses AdGuard Home for caching, custom records, and a blocklist pass. Upstream queries go to NextDNS for their blocklists and encrypted resolution. Your phone on LTE uses the NextDNS profile directly.
This is a reasonable setup that doesn’t require you to choose. The annual plan pays for itself in “I don’t have to babysit this for the year.”
Privacy Reality Check
Let’s not pretend NextDNS is perfect from a privacy standpoint. Their privacy policy says they don’t sell your data, they have a “no-logs” mode, and logs are stored encrypted. They’re based in the US and Delaware-incorporated.
What “no-logs mode” actually means in NextDNS: queries are still processed (obviously), but not stored. You lose the query analytics dashboard. That’s the trade-off.
If you enable logging (which you probably want, for the analytics), NextDNS has a timestamped record of every domain your household resolved. They say they don’t sell this, and I believe them, but that’s trust you’re extending.
Self-hosted: your logs, your hardware, your retention policy. Zero trust required in a third party. If you’re investigating someone’s traffic (parental controls, network debugging), those logs don’t leave your house.
Threat model it honestly:
- Concerned about ISP surveillance: NextDNS DoH wins over plain DNS, whether you self-host upstream or not
- Concerned about a commercial DNS provider logging your queries: Self-hosted Unbound or AdGuard Home with a recursive resolver
- Just want ads blocked on your phone without thinking about it: NextDNS
Quick Setup Reference
NextDNS Profile on iOS
- Create account at nextdns.io
- Settings → Setup → Apple → Download profile
- Settings app → General → VPN & Device Management → Install profile
- Verify at test.nextdns.io
AdGuard Home with NextDNS Upstream
# /opt/adguardhome/conf/AdGuardHome.yaml (relevant section)dns: upstream_dns: - https://dns.nextdns.io/YOUR_PROFILE_ID bootstrap_dns: - 9.9.9.9 - 149.112.112.112 upstream_mode: parallel cache_size: 4194304 cache_ttl_min: 0 cache_ttl_max: 0Restart AdGuard Home after editing the config directly, or set upstream DNS via the web UI at Settings → DNS settings.
Verify Your DNS
# Check what resolver you're usingdig +short TXT whoami.nextdns.io
# Or from a phone on LTE# Visit test.nextdns.io in Safari/Chrome# Should show your NextDNS profile ID and "Connected: Yes"The Bottom Line
Self-hosting your DNS is the right call if you have a Tailscale tailnet already, you care about data sovereignty more than convenience, or you want complete control over your query logs and blocklist tuning.
NextDNS is the right call if you have family members with phones, you travel, you don’t want to maintain an always-on home server for DNS, or your time is worth more than $1.99/month.
The hybrid pattern (AdGuard Home at home, NextDNS as upstream, NextDNS profile on mobile) is genuinely the best of both, and it costs $20 a year.
“Everything must be self-hosted” is a fun ideology until you’re explaining to your partner why the YouTube app on their phone has ads because they forgot to enable the VPN. NextDNS exists, it’s cheap, it solves real problems. Use the right tool for the job, not the most ideologically pure one.
Your homelab is not diminished by paying for one $20/year SaaS product. It’s called pragmatism.
