Your DNS server is involved in every single thing you do online. Before your browser can connect to any website, it asks a DNS server to translate the domain name into an IP address. That lookup happens dozens of times per page load — and most people are still using whatever their ISP assigned by default.

Switching DNS servers takes about two minutes. The difference in speed is measurable, the privacy difference is significant, and some options give you filtering and security controls your ISP never offered.

Here's what's actually worth switching to in 2026.

What to Look for in a DNS Server

Latency is the main performance metric — how fast the resolver responds to your query. Lower is better. Results vary significantly by your location, so the "fastest" global average doesn't necessarily mean fastest from your home.

Privacy policy matters because your DNS provider can see every domain you query. That's a detailed record of your browsing habits. Some providers log everything; others log nothing; many are somewhere in between.

QNAME minimisation is a technical feature worth checking for — instead of sending the full domain name to upstream servers, the resolver sends the minimum necessary information. Better for privacy.

Filtering is optional but useful — some resolvers block malware, phishing, and advertising domains at the DNS level, before your device even makes a connection.

The Main Options

Cloudflare: 1.1.1.1

Primary: 1.1.1.1 Secondary: 1.0.0.1 IPv6: 2606:4700:4700::1111 / 2606:4700:4700::1001

Cloudflare's resolver is consistently the fastest in most regions by independent benchmarks. They built it specifically to be a fast, privacy-respecting alternative to ISP DNS, and it shows.

Privacy policy: they don't log individual IP queries for more than 24 hours and never sell data to advertisers. Audited by KPMG.

Cloudflare also runs 1.1.1.2 (malware blocking) and 1.1.1.3 (malware + adult content filtering) if you want those options.

Best for: most users. Fast everywhere, trustworthy privacy policy, easy to remember.

Google Public DNS: 8.8.8.8

Primary: 8.8.8.8 Secondary: 8.8.4.4 IPv6: 2001:4860:4860::8888 / 2001:4860:4860::8844

Google's resolver is reliable and globally fast, backed by Google's infrastructure footprint. It's been around since 2009 and handles enormous query volumes, which helps with caching — popular domains are almost certainly already in cache.

The privacy concern: Google does log queries, associated with partial IP addresses, for diagnostic purposes. They're Google. If you're already in the Google ecosystem (Gmail, Chrome, Android), this is a minor incremental concern. If you're specifically trying to reduce data exposure to Google, pick something else.

Best for: reliability and speed when privacy isn't a primary concern.

Quad9: 9.9.9.9

Primary: 9.9.9.9 Secondary: 149.112.112.112 IPv6: 2620:fe::fe / 2620:fe::9

Quad9 is operated by a non-profit foundation in Switzerland and focuses on security. It blocks domains associated with malware, phishing, and botnets using threat intelligence from IBM X-Force and other partners — without logging your personal data.

If a domain you try to visit is on the blocklist, Quad9 returns NXDOMAIN and the connection never happens. It's passive protection that stops a class of threats before they reach your device.

Performance is solid — typically a bit slower than Cloudflare or Google in raw speed benchmarks, but the built-in threat blocking offsets this for many users.

Best for: users who want security filtering without maintaining their own blocklists, especially on networks with mixed devices.

NextDNS

Primary: Varies (assigned per account) Secondary: Varies

NextDNS is a different category — it's a configurable DNS resolver with a dashboard. You create an account, get a custom DNS endpoint, and then configure what you want blocked: ads, trackers, malware, adult content, social media, specific domains. All through a web UI.

It logs queries (viewable by you) and shows you analytics on what your devices are resolving. Privacy-aware mode strips the last byte of IPs in logs.

Free tier: 300,000 queries per month (enough for a single-device user). Paid plan is very inexpensive and unlimited.

Best for: technical users who want control, visibility into DNS activity, and network-wide ad/tracker blocking without running Pi-hole.

AdGuard DNS

Primary: 94.140.14.14 Secondary: 94.140.15.15

AdGuard's public resolver blocks ads and trackers at the DNS level, no account required. Less configurable than NextDNS but zero setup.

Best for: quick ad blocking at the network level without any configuration.

Your ISP's DNS

The default. Usually slower than the alternatives, and your ISP can see and potentially monetise your DNS queries. Some ISPs inject their own results for expired or non-existent domains (showing their own search page instead of NXDOMAIN).

There's rarely a reason to stay on ISP DNS unless you've specifically tested and found it faster from your location.

How to Check Which DNS Server You're Using Now

Before you switch, it's useful to know where your DNS queries are currently going. Use the DNS Server Lookup tool to see your current resolver.

Or from the command line:

Windows:

Command
ipconfig /all

Look for "DNS Servers" under your active adapter.

macOS:

Command
scutil --dns | grep nameserver

Linux:

Command
resolvectl status

or

Command
cat /etc/resolv.conf

How to Switch DNS Servers

On Windows

  1. Settings → Network & Internet → your connection → DNS server assignment → Edit
  2. Choose Manual
  3. Enter primary and secondary IPv4 (and IPv6 if you use it)
  4. Save

Or via Command Prompt (admin):

Command
netsh interface ip set dns "Wi-Fi" static 1.1.1.1
netsh interface ip add dns "Wi-Fi" 1.0.0.1 index=2

On macOS

System Settings → Network → your connection → Details → DNS → click + to add servers → remove old entries → OK

On Linux (systemd-resolved)

Edit /etc/systemd/resolved.conf:

Command
[Resolve]
DNS=1.1.1.1 1.0.0.1
FallbackDNS=9.9.9.9

Then: sudo systemctl restart systemd-resolved

On Your Router (Best Option)

Setting DNS on the router applies it to every device on your network automatically — phones, smart TVs, consoles, everything. Look for "DNS" settings under WAN or DHCP configuration in your router's admin panel.

DNS Over HTTPS and DNS Over TLS

Standard DNS queries are unencrypted — any network observer (your ISP, a coffee shop's router, a man-in-the-middle) can read them even if the website you visit is HTTPS.

DNS over HTTPS (DoH) and DNS over TLS (DoT) encrypt the DNS query itself. All major providers support both:

Provider DoH DoT
Cloudflare https://cloudflare-dns.com/dns-query 1.1.1.1:853
Google https://dns.google/dns-query 8.8.8.8:853
Quad9 https://dns.quad9.net/dns-query 9.9.9.9:853
NextDNS Custom per account Custom per account

Modern browsers (Chrome, Firefox, Edge) support DoH natively and can be configured independently of system DNS.

The Bottom Line

For most users: Cloudflare (1.1.1.1) is the default upgrade — fast, private, and easy to configure.

For security-first users: Quad9 (9.9.9.9) adds threat blocking without needing an account or configuration.

For users who want control: NextDNS gives you a full dashboard, per-device logging, and configurable filtering.

Check what you're currently running with the DNS Server Lookup tool, then change it if there's a better option for your situation.