DNS filtering blocks ads network-wide. Hosts file only works on one device. Use DNS filtering (Pi-hole, AdGuard) for whole-home ad blocking.
Factor
DNS Filtering
Hosts File
Coverage
✅ All devices
One device only
Ease of Use
⭐⭐⭐⭐ Easy
⭐⭐ Manual
Updates
✅ Automatic
Manual
DNS Filtering
Block ads at DNS level (Pi-hole, AdGuard DNS).
✓ Pros
Works on all devices
Easy to update
Can whitelist
Works network-wide
✗ Cons
Requires Pi-hole or service
Can break some sites
Requires setup
Hosts File
Block ads by editing system hosts file.
✓ Pros
Free
No external service
Works offline
✗ Cons
Only one device
Hard to update
Manual editing
Can cause issues
The Verdict
Use DNS filtering. Pi-hole or AdGuard DNS blocks ads on your entire home network - phones, tablets, smart TVs. Hosts file is outdated and only works on one device.
Frequently Asked Questions
Is DNS filtering better than browser ad blocker?
Different purposes. DNS filtering blocks ads network-wide but can't block in-page ads. Use both: DNS filtering + uBlock Origin for maximum blocking.