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DNS Filtering

DNS Filtering for Remote Workers & Small Businesses

DNS filtering is the cheapest, highest-leverage security layer available. It blocks threats upstream — before a malicious connection is ever made, before any code runs, before your endpoint protection even gets a chance to react.

⚠️
Why this matters: Most home routers and mobile devices use your ISP's DNS resolver by default — with zero filtering, zero logging, and no protection against malicious domains. A DNS filter intercepts every lookup on your network and blocks known malware, phishing, and C2 infrastructure before a connection is established. It costs nothing to start and takes under 10 minutes to configure.
SecureFinds Top Pick
NextDNS
Privacy-first DNS filter — free up to 300k queries/mo

NextDNS is what I run on every device and recommend as the default starting point. The configuration dashboard is genuinely good — you pick blocklists, set per-device policies, and get real query logs with latency data. The free tier is enough for most individuals; the $1.99/mo unlimited plan is an obvious call for small teams. Privacy-first architecture, servers in 200+ locations, supports DoH, DoT, and DoQ.

300k queries/month free — unlimited at $1.99/mo
Per-device and per-profile policy configuration
Supports DoH, DoT, DoQ and native apps for all platforms
Query log with full domain visibility and latency data
No-log option available; GDPR-compliant
Try NextDNS Free ↗
Affiliate link — we earn a small commission
Starting at
Free
$1.99/mo unlimited

Also Evaluated

These tools are worth knowing about. None have an affiliate relationship with SecureFinds — listed on merit only.

Control D
Granular DNS filtering — free tier + paid from $2/mo
✓ Approved

Built by the Windscribe team and it shows — more per-service granularity than anything else at this price. You can block specific platforms (TikTok, Reddit, specific ad networks) by toggle, set schedules, and apply different profiles per device. The power-user pick. Note: the free tier is a fixed resolver (no dashboard or custom rules) — the features described here require a paid plan from $2/mo.

Home Office SMB Free / $2/mo paid
Visit Control D ↗
Cloudflare Gateway
Free DNS filtering — up to 50 users
✓ Approved

Cloudflare Gateway (part of Zero Trust) gives you solid DNS filtering free for up to 50 users. Less configuration depth than NextDNS, but Cloudflare's threat intel is world-class and the infrastructure is as fast as it gets. Good choice if you're already in the Cloudflare ecosystem or want a free team-wide baseline without managing blocklists.

SMB Teams Free (≤50 users)
Visit Cloudflare Gateway ↗
Quad9
Free, no-log, threat-blocking DNS
✓ Approved

Quad9 (9.9.9.9) is the zero-config floor — free, non-profit, no logging, and blocks malicious domains via IBM X-Force threat intelligence. No dashboard, no policies, no per-device rules. But if you just want protection-by-default at the router level with nothing to manage, Quad9 is a legitimate set-and-forget option. Pair it with NextDNS on individual devices for full coverage.

Router No-Log Free
Visit Quad9 ↗

🗺️ How to choose

Individual remote worker NextDNS free tier on your devices + Quad9 at the router. Done in 10 minutes, costs nothing.
Power user / policy control Control D. More setup, more control. Worth it if you want per-service blocking and scheduling.
Small team (2–50 people) NextDNS $1.99/mo unlimited, or Cloudflare Gateway free if you want zero cost and Cloudflare's threat intel.
Zero-config baseline Point your router's DNS to 9.9.9.9 (Quad9). No account, no dashboard, just protection.
Affiliate disclosure: SecureFinds may earn a commission if you purchase NextDNS through our link. Control D, Cloudflare Gateway, and Quad9 have no affiliate relationship — they're listed because they're good.