Browser ad blockers stop at the browser. Pi-hole stops ads and trackers for every device on your home network at once, from your phone and laptop to the smart TV and the kids' tablets, by working one level deeper. It sits between your devices and the internet as a DNS sinkhole, quietly refusing to look up the domains that serve ads and tracking. Set it up on a Raspberry Pi or any small machine and the whole house gets cleaner browsing with nothing to install on each device.
Quick Answer
Pi-hole runs on any Raspberry Pi or mini PC and acts as a local DNS server. When a device asks for an ad or tracker domain, Pi-hole returns a dead address instead of the real one, so the ad never loads. Point your router's DHCP at the Pi-hole and every connected device is protected. Setup takes 15 to 20 minutes.
How a DNS sinkhole actually works
Every time a device loads a page, it asks a DNS server to translate domain names into IP addresses. Pi-hole inserts itself as that DNS server. Before answering, it checks the requested domain against blocklists. If the domain is clean, Pi-hole fetches the real IP and hands it back. If the domain is a known ad or tracker, Pi-hole returns a non-routable address such as 0.0.0.0, so the connection simply goes nowhere and the ad never appears. Because this happens at the network layer, it catches ads in mobile apps, on smart TVs and in places no browser extension can reach.
Pick the right hardware
Pi-hole barely sips resources, so almost any small machine works. A Raspberry Pi 4 with 2GB or more is the sweet spot for a busy household, a Pi 3B+ is fine for a typical home, and a Pi Zero 2 W handles a small network on a tiny budget. A Pi 5 has performance to spare. If you would rather run it on something with more headroom, perhaps alongside other services, the compact x86 boxes in the mini PC range at Evetech make capable always-on hosts that draw little power.
Install and configure step by step
- Flash a fresh operating system to your Pi's microSD card, or prepare your mini PC, and connect it to your network, ideally by ethernet for stability.
- Run the official Pi-hole installer with the one-line command from the project. The installer walks you through choosing an upstream DNS provider and your blocklists.
- When it finishes, note the admin web interface address and the password it generates.
- Log in to the dashboard to see queries, blocked domains and per-device stats.
- Configure your router so its DHCP hands out the Pi-hole's IP address as the DNS server for all clients. This is the step that protects the whole network at once.
- Reconnect a device or renew its lease, then load a normally ad-heavy page to confirm the ads are gone.
Keep it running smoothly
Once it is set up, Pi-hole mostly looks after itself. The overhead is small enough to leave it on permanently, and the dashboard shows exactly what is being blocked so you can whitelist anything that breaks. Add a couple of reputable blocklists for stronger coverage, but avoid piling on too many, which can block legitimate sites. For a resilient home setup, run Pi-hole on a machine you keep on anyway, and many of the popular always-on options sit in the best-selling PCs.
Frequently Asked Questions
Does Pi-hole block ads on every device?
Yes, once your router points all devices to Pi-hole for DNS. It works at the network level, so it covers phones, tablets, smart TVs, consoles and apps, not just browsers, with nothing to install on each device.
What hardware do I need?
Any Raspberry Pi works, from a Pi Zero 2 W for small networks up to a Pi 5. A Pi 4 with 2GB or more suits a busy home well. A low-power mini PC is a strong alternative if you want to run other services too.
Will it slow my internet down?
No. Pi-hole answers blocked lookups instantly with a dead address and caches clean ones, which can actually make browsing feel snappier. Its resource use is tiny, so it leaves your connection speed untouched.
Can it break websites?
Occasionally a legitimate site relies on a blocked domain. When that happens, the dashboard shows you what was blocked and you whitelist it in a couple of clicks. Keeping to reputable blocklists minimises this.
Do I have to change settings on every device?
No, and that is the point. You set Pi-hole as the DNS server once, in your router's DHCP settings, and every device that joins the network is covered automatically.
Want clean, ad-free browsing across your whole home? Pick up a Raspberry Pi or a low-power host from the mini PC range at Evetech and have Pi-hole guarding your network tonight.