Best DNS Resolvers for Developers (Cloudflare, NextDNS, Pi-hole, Quad9)
<p>Cloudflare 1.1.1.1 for speed, NextDNS for filtering, Pi-hole for self-hosters, Quad9 for privacy. the DNS picks for builders.</p>
Switching DNS resolvers is a 60-second change with measurable upside on browsing speed, privacy, and ad/tracker blocking. The current picks for builders are different from the 2014 picks. Google DNS and OpenDNS still work; they are no longer the right defaults.
- Top pick for speed: Cloudflare 1.1.1.1. Independently measured the fastest public resolver on most networks recently.
- Top pick for blocking ads + trackers: NextDNS or ControlD. Per-device, configurable, $1.99-$3.99/month. Beats Pi-hole for users who travel.
- Top pick for self-hosters: Pi-hole or AdGuard Home on the home network. Free, no monthly cost, network-level blocking.
- Top pick for privacy: Quad9 (9.9.9.9). DNS-over-HTTPS, blocks malicious domains, Swiss-privacy-foundation operated.
- Skip: ISP DNS (logged, slow, bad). Free “VPN with DNS” combos that route through low-credibility resolvers. DNS leaks from misconfigured VPN clients.
The 2014 version of this guide pointed at Google DNS (8.8.8.8) and OpenDNS (208.67.222.222) as the two upgrades over ISP defaults. Both still work; neither is the right default. The DNS landscape has shifted to specialized resolvers that solve specific problems: Cloudflare for speed, NextDNS / ControlD for filtering, Pi-hole for self-hosting, Quad9 for privacy. The right pick depends on which one you care about.
01Why the resolver matters more
DNS is the first hop on every web request. A slow resolver adds 30-100ms to the first connection of every site you visit. A privacy-leaking resolver hands your browsing history to whoever runs it. A non-filtering resolver leaves you with the full ad/tracker payload on every site. The current reality:
- ISP DNS in most countries logs queries for a year-plus. The data is sold to advertisers or pulled under legal request.
- Public resolvers (Cloudflare, Google, Quad9) have privacy policies that vary; Cloudflare 1.1.1.1 underwent a third-party privacy audit by KPMG. The others are less independently verified.
- Filtering resolvers (NextDNS, ControlD, AdGuard DNS) block ads, trackers, and malware at the resolver layer. Effective on browsers, mobile apps, smart TVs. Anything that resolves a domain.
- DNS-over-HTTPS / DoH is now the default in Chrome, Firefox, and Safari on supported networks. Without DoH, your DNS queries are visible to every router between you and the resolver.
02At a glance: the resolvers we run
| Resolver | IP | Speed | Privacy | Filtering | Cost |
|---|---|---|---|---|---|
| Cloudflare 1.1.1.1 | 1.1.1.1 | Fastest | Audited | None (1.1.1.2 for malware blocking) | Free |
| Quad9 | 9.9.9.9 | Fast | Strong (Swiss foundation) | Malicious domains | Free |
| Google DNS | 8.8.8.8 | Fast | Mixed | None | Free |
| OpenDNS | 208.67.222.222 | OK | Cisco-owned | Configurable | Free / paid |
| NextDNS | Custom | Fast | No-log option | Yes, deeply customizable | $1.99/mo |
| ControlD | Custom | Fast | No-log option | Yes, profile-based | $3.99/mo |
| AdGuard DNS | Custom | Fast | Logged optionally | Yes | Free / $1.49/mo |
| Pi-hole / AdGuard Home | Self-hosted | Local | You own the data | Yes, self-managed | Free + hardware |
03Cloudflare 1.1.1.1 (the speed pick)
Cloudflare’s 1.1.1.1 is the default upgrade from ISP DNS for any user who does not need filtering. Independently audited privacy claims, faster than Google DNS in most regions, supports DoH out of the box.
Buy if: you want a free, fast, audited resolver with zero config. Skip if: you need ad/tracker blocking. Cloudflare 1.1.1.1 does not filter; use 1.1.1.2 (malware) or 1.1.1.3 (malware + adult) variants, or NextDNS instead.
The 1.1.1.2 variant blocks known-malicious domains; 1.1.1.3 blocks malware plus adult content. For developers and operators who want a clean baseline, the unfiltered 1.1.1.1 is the right default and pairs with browser-level uBlock Origin or system-level NextDNS as the filter layer.
04NextDNS (the filtering pick)
NextDNS is what serious blockers use. Per-profile configuration, block lists you actually choose, parental controls if you need them, and the no-log option is real (audited).
Buy if: you want ad/tracker/malware blocking that follows you across networks. Skip if: you self-host Pi-hole at home and never connect from elsewhere.
NextDNS at $1.99/month per account (300k queries free per month before the limit) is the right answer for builders who travel between networks. The same filtering profile follows your laptop and phone everywhere, including coffee-shop wifi and hotel networks where Pi-hole at home cannot reach. ControlD ($3.99/month) is the closest alternative; the choice between them comes down to UI preference.
05Pi-hole / AdGuard Home (the self-hosted pick)
Pi-hole on a Raspberry Pi at home gives you network-level filtering for every device on your wifi. Free, totally local, fits the self-hosting cluster. AdGuard Home is the modern alternative with a cleaner UI.
Buy if: you have a Raspberry Pi or any always-on home server. Skip if: you spend most of your day on networks outside the home. NextDNS travels with you; Pi-hole does not.
The Pi-hole / AdGuard Home pattern: install on a Pi or any home Linux box, configure the home router’s DHCP to advertise the Pi as the DNS server, every device on the network is now filtered. Smart TVs, IoT devices, kids’ tablets. All hit the local resolver and have ads blocked at the protocol level.
06Quad9 (the privacy pick)
Quad9 is operated by a Swiss non-profit foundation, blocks malicious domains (phishing, malware C2), and has the strongest privacy posture of any major public resolver.
Buy if: privacy posture is the primary criterion and you want non-corporate stewardship. Skip if: you also need ad blocking. Quad9 blocks malware only, not advertising.
07Google DNS and OpenDNS (the legacy picks)
Google DNS (8.8.8.8) is fast and reliable. The privacy posture is what you’d expect from Google: queries logged transiently, anonymized, used internally. For users who want a fast resolver and do not care about Google having the data, it works. For everyone else, Cloudflare is the upgrade path.
OpenDNS (now Cisco Umbrella) was the 2010s default for parental-control filtering. The free tier still works; the paid tier is enterprise-priced and pitched at corporate networks. For families wanting filtering, NextDNS or ControlD have surpassed it on UI and per-device configuration.
08How to actually switch DNS
- 1Pick a resolver based on the comparison above
- 2macOS: System Settings → Network → Wifi → Details → DNS → enter the IPs
- 3Windows: Settings → Network → Wifi → Hardware properties → DNS server assignment
- 4iOS: Settings → Wifi → tap (i) on network → Configure DNS → Manual
- 5Router: log into admin (192.168.0.1 or 192.168.1.1) → DHCP / DNS settings → set IPs → save → reboot
- 6Verify with
dig +short example.com @1.1.1.1from terminal
For DoH (DNS-over-HTTPS), use the resolver’s app or browser-level setting. NextDNS and ControlD provide signed configuration profiles for Apple devices that enable DoH system-wide; on Android, both have apps that install a VPN-style profile.
09Which resolver should you pick?
Pick by priority
- Speed only, no filtering needed? → Cloudflare 1.1.1.1, free
- Want to block ads and trackers everywhere you go? → NextDNS or ControlD, $1.99-$3.99/month
- Have a Raspberry Pi at home and stay on home wifi? → Pi-hole or AdGuard Home, free
- Privacy is the top priority? → Quad9, free, Swiss-foundation operated
- Family setup with parental controls? → NextDNS family plan or ControlD profiles
- Self-hosted but travels? → Pi-hole + Tailscale gives you the home filter from anywhere
10FAQ
Is changing DNS still worth it?
Yes, on most home networks. ISP DNS is typically slower, less private, and unfiltered. A 60-second switch to Cloudflare 1.1.1.1 (free) cuts the first-byte time on every request and improves the privacy posture. Filtering resolvers add ad/tracker blocking on top.
Which DNS is the fastest?
Cloudflare 1.1.1.1 is independently measured as the fastest public resolver on most networks. Google DNS (8.8.8.8) is close. The actual speed depends on your geographic location relative to the resolver’s nearest edge.
Does NextDNS slow down my connection?
No, in normal use. NextDNS has a global anycast network with sub-30ms median response times. The filtering happens at the resolver and adds zero perceptible delay. The trade-off is the $1.99/month subscription.
Pi-hole vs NextDNS. Which should I use?
Pi-hole if you spend most of your time on home wifi and want zero monthly cost. NextDNS if you travel between networks (coffee shops, hotels, offices) and want filtering everywhere. Pi-hole + Tailscale combines both: free, self-hosted, travels with you.
Is Cloudflare 1.1.1.1 really faster than Google DNS?
On independent benchmarks (DNSPerf and similar), 1.1.1.1 has held the top public-resolver speed ranking recently. Google DNS is fast and consistent; Cloudflare is faster in most regions. The gap is small (a few ms) but real.
11WikiWalls verdict
WikiWalls verdict. Cloudflare 1.1.1.1 for speed and zero config. NextDNS or ControlD for filtering that travels with you. Pi-hole or AdGuard Home for self-hosters at home. Quad9 for privacy maximalists. Skip ISP defaults and the legacy 8.8.8.8 / OpenDNS combo unless inertia is the deciding factor.
This guide was last reviewed and updated by WikiWalls recently to reflect Cloudflare 1.1.1.1 as the speed leader, the maturation of NextDNS / ControlD as filtering services, and the self-hosted Pi-hole / AdGuard Home pattern for the self-hosting cluster.
