Why I put a Pi-hole on our home network
Our kid got old enough for a tablet, and pretty quickly I saw an ad I really didn't want to explain for another ten years. So I went looking for a way to clean up our home internet without standing over every screen. That's how I ended up running Pi-hole. It's free, it took an afternoon, and it's one of the better little projects I've done for the house.
What it does
When any device wants to load a site, it first asks a DNS server for the address. Think of DNS as the internet's phone book. Pi-hole becomes your home's phone book. Normal sites resolve normally. But when something asks for a known ad server, a tracker, or a domain you've blocklisted, Pi-hole hands back a dead end (0.0.0.0) and the connection never happens. The proper name for this is a DNS sinkhole. You can think of it as the phone book quietly refusing to look up numbers you don't want called.
One setup, every device
This is the bit I like. You don't install anything on each phone or laptop, and there are no browser extensions to manage. You set it up once, point your router's DNS at it, and every device that joins the Wi-Fi is covered. That includes the ones you couldn't put software on anyway, like the smart TV, the game console, and the kids' tablets.
Getting it running
You don't need fancy hardware. An old Raspberry Pi works fine, and so does a small VM or a container if you already have a box running.
The steps that actually matter:
- Install Pi-hole. The official installer is a single command.
- Give it a fixed IP so it doesn't move around after a reboot. A DHCP reservation on your router is the easy way.
- Point your router's DNS at that IP. This is the step that puts the whole house behind it.
- Add your blocklists. A good default list comes preloaded, and for family filtering you can add lists that cover adult content and malware.
Why it works for families
The real win for us was giving different kids different rules. Our son's devices sit on their own Wi-Fi with tighter filtering, so his slice of the internet is gentler than the rest of the house, and I'm not refereeing it in real time. There's also a dashboard that shows everything being blocked as it happens. It's satisfying to watch, and a little alarming when you see how many trackers a "free" app fires off in a single evening.
Where it falls short
I want to be honest about the limits, because a lot of guides skip this part. Pi-hole is a filter, not a babysitter. It only sees plain DNS, so it can't do anything about encrypted DNS, which looks like ordinary web traffic and slips straight past it. A device on a VPN sends its DNS somewhere else entirely. And anyone who knows what they're doing can point a phone at 8.8.8.8 or 1.1.1.1 and skip your Pi-hole completely. A determined teenager will find these gaps.
So I treat it as one layer rather than the whole plan. It sits alongside the stuff that actually matters, like device settings and honest conversations. As a cheap first line of defence that protects the whole house without any nagging, though, it has earned its spot in our closet. If you've got a free afternoon, it's worth a go.
