Customizable DNS firewall with analytics
Quick answer
NextDNS is a highly customizable DNS firewall that lets you choose blocklists, set per-device profiles, and view detailed analytics. It is the most flexible DNS filter, but its free tier is limited and it lacks app-level tamper protection.
What NextDNS does well
- Highly customizable: choose from dozens of blocklists and create custom rules.
- Per-device profiles with different filter levels.
- Built-in ad and tracker blocking.
- Detailed analytics and logging dashboard.
- DNS-over-HTTPS, DNS-over-TLS, and Private DNS support.
- Free tier with 300,000 queries per month.
Where NextDNS leaves gaps
- No mobile app for one-tap protection — requires manual DNS setup.
- No uninstall or DNS-change protection.
- Free tier limited to 300K queries/month — heavy households may exceed it.
- No Safe Search enforcement built in (requires manual blocklist configuration).
- Complex setup for non-technical users.
Feature-by-feature comparison
| Feature | Kahf Guard | NextDNS |
|---|---|---|
| DNS-level blocking | ✓ | ✓ |
| App-level filtering | ✓ | ✗ |
| Uninstall protection | ✓ | ✗ |
| DNS-change lock | ✓ | ✗ |
| Safe search enforcement | ✓ | ~ manual config |
| Ad & tracker blocking | ✓ | ✓ |
| Per-device profiles | ✓ | ✓ |
| Router / whole-home coverage | ✓ | ✓ |
| Free tier | ✓ | ✓ |
Our verdict
NextDNS is the most powerful DNS filter for technical users who want granular control. But power comes with complexity — it requires manual setup, manual blocklist management, and offers no tamper lock. For a family that needs "set it and forget it," it is not the right fit.
Block it at the source — and lock it
Free DNS-level filtering, app-level protection, and tamper lock in one app.
Get Kahf Guard freeFrequently asked questions
Is NextDNS free?
Yes, with a free tier of 300,000 queries per month. Paid plans start around $19/year for unlimited queries and additional features.
Does NextDNS block adult content?
It can, if you enable the appropriate blocklists. It does not come pre-configured for adult-content blocking — you must set it up.
Can NextDNS be bypassed?
Yes. The DNS setting on a device can be changed, bypassing the filter. There is no lock.