How to Change Your DNS Server for Faster Internet: Google DNS, Cloudflare, and NextDNS Compared and Benchmarked

Every time you open a website, your device asks a DNS server to translate the domain name (like wifispeed.com) into an IP address before it can load anything. That lookup takes time — and if your ISP’s DNS server is slow or geographically distant, it adds measurable latency to every single page load, every app request, and every streaming session. Switching to a faster, public DNS resolver is one of the few network changes that costs nothing and takes effect immediately across all your devices when you configure it at the router level.

What Is a DNS Server and Why Does It Affect Speed?

DNS stands for Domain Name System. It’s the internet’s address book: when you type a URL, your device queries a DNS resolver to get the numeric IP address of the server you want to reach. Only after that lookup completes does your browser start downloading the actual page. A slow DNS resolver adds its response time to every new connection you make — not just the first one. On a typical browsing session that opens dozens of new domains (ads, analytics, CDN assets, APIs), DNS latency compounds quickly.

ISP-provided DNS resolvers are convenient but rarely optimized. They are often shared across thousands of subscribers, have limited geographic distribution, and may log or manipulate queries. Independent benchmarks consistently show ISP default DNS averaging 35–50 ms response time, while top public resolvers clock in under 15 ms from most locations in North America and Europe.

How Much Faster Are Third-Party DNS Servers?

The improvement is real but contextual. DNS lookup time is a per-connection overhead, not a raw throughput gain — switching DNS will not increase your download speed on a large file transfer. Where you feel it is in page load times, app responsiveness, and how quickly new connections establish. Sites that load dozens of third-party resources (media, fonts, scripts) see the largest gains because each new domain requires its own DNS lookup.

In controlled testing with ISP-default DNS averaging 45 ms, switching to Cloudflare 1.1.1.1 at ~11 ms reduced median first-byte time by 20–30 ms per new domain. Across a typical news page that references 40–60 distinct domains, that adds up to a perceptible speed difference. Your mileage will vary by ISP and location — some ISPs already use fast resolvers, and a few geographic locations are better served by Google’s or Quad9’s anycast infrastructure than Cloudflare’s.

The Best Public DNS Servers in 2026

Cloudflare 1.1.1.1 — Fastest Overall

Primary: 1.1.1.1 — Secondary: 1.0.0.1

Cloudflare operates the largest anycast DNS network and consistently tops independent benchmark tables from DNSPerf and similar monitoring services. Average global response time sits around 11 ms in 2026 benchmarks. Cloudflare does not sell query data and publishes a public privacy commitment for 1.1.1.1. It also supports DNS-over-HTTPS (DoH) and DNS-over-TLS (DoT) for encrypted queries. This is the right default choice for most households.

Google Public DNS 8.8.8.8 — Most Reliable

Primary: 8.8.8.8 — Secondary: 8.8.4.4

Google’s public resolver has been running since 2009 and has a near-perfect uptime record. Average response time is approximately 20 ms globally — slower than Cloudflare on average but still far ahead of most ISP defaults. Google does collect anonymized query data for network abuse analysis. For users who prioritize maximum uptime and reliability over privacy, Google DNS is an excellent secondary or primary option. It’s also a solid fallback for the secondary DNS field when Cloudflare is primary.

Quad9 9.9.9.9 — Best for Security

Primary: 9.9.9.9 — Secondary: 149.112.112.112

Quad9 is operated by a Swiss nonprofit and blocks DNS queries to known malicious domains using threat intelligence from 19+ security vendors. It adds a meaningful layer of protection against phishing, malware distribution, and command-and-control infrastructure — blocking the bad domain before your device ever reaches it. Average response time is around 25–35 ms globally, slightly slower than Cloudflare and Google, but the security filtering makes it a strong choice for households with children or less technically experienced users.

NextDNS — Best for Customization

NextDNS is a configurable DNS-over-HTTPS service that combines ad blocking, tracker blocking, parental controls, and security filtering through a web dashboard. You get per-device policies, query logs, and blocklist management — features that move DNS from a background service to an active network security layer. The free tier allows 300,000 queries per month (enough for a small household); paid plans start at $1.99/month for unlimited queries. Setup requires adding a unique endpoint to your router rather than two static IPs, which is slightly more involved. Our guide on Pi-hole and DNS-level ad blocking covers similar concepts if you prefer a self-hosted approach.

How to Change DNS on Your Router

Changing DNS at the router level is the most efficient approach — every device on your network (phones, laptops, smart TVs, IoT devices) automatically uses the new resolver without any per-device configuration. Here’s how to do it on the most common router platforms:

TP-Link (Archer / Deco)

1. Log in to your router at 192.168.0.1 (or open the Tether app)
2. Go to Advanced → Network → Internet
3. Under DNS, change from “Get Automatically” to “Use the Following DNS Addresses”
4. Enter 1.1.1.1 as Primary DNS and 8.8.8.8 as Secondary DNS
5. Click Save

ASUS (RT / ZenWiFi)

1. Log in at router.asus.com or 192.168.1.1
2. Go to WAN → Internet Connection
3. Scroll to WAN DNS Setting and set Connect to DNS Server Automatically to No
4. Enter your preferred DNS servers in the DNS Server 1 and DNS Server 2 fields
5. Click Apply

Netgear (Nighthawk / Orbi)

1. Log in at routerlogin.net or 192.168.1.1
2. Go to Internet → Internet Setup
3. Under Domain Name Server (DNS) Address, select Use These DNS Servers
4. Enter your primary and secondary DNS addresses and click Apply

Amazon Eero

Eero does not expose DNS settings in its default consumer interface. To use a custom DNS resolver, go to the Eero app → Settings → Network Settings → DNS and select Cloudflare, Comodo Secure DNS, or enter custom addresses. Note that eero Pro devices with eero Plus subscriptions also support Amazon’s DNS-based content filtering, which overrides manual entries when enabled.

How to Find the Fastest DNS for Your Specific Location

Benchmark results vary by geography, ISP, and time of day. To find the objectively fastest resolver from your network, use one of these free tools:

• DNS Benchmark (Windows, free): Tests up to 200 resolvers from your machine and ranks them by actual response time. Run it during your peak usage hours for the most accurate result.
• namebench (Mac/Windows/Linux, free): Google’s open-source DNS benchmarking tool. Tests your browsing history against multiple resolvers to find which one responds fastest for the specific domains you actually use.
• DNSPerf.com: A web-based tool that shows real-time global and regional performance data for all major public DNS resolvers without any software to install.

In most North American and European locations, Cloudflare 1.1.1.1 wins or comes close. In parts of Asia-Pacific or Latin America, Google’s larger infrastructure sometimes edges it out. The five minutes it takes to run DNS Benchmark is worth it before committing to a resolver.

DNS Privacy: What You Should Know

Your DNS resolver sees every domain name your devices query. ISP resolvers have historically been subject to retention requirements, resale of aggregated data, and in some regions legal requests. Cloudflare 1.1.1.1 and Quad9 both publish specific data retention and privacy policies that limit what they store. If privacy is a priority, pair your DNS change with DNS-over-HTTPS (DoH) support — available on Cloudflare, Google, and Quad9 — which encrypts queries so your ISP cannot see which domains you’re resolving even over a shared connection. Our explainer on DNS over HTTPS covers how to enable it at the router and browser level.

Changing your DNS is a low-risk, reversible change that takes effect immediately. If you notice any site-loading issues after switching (rare, but it can happen with split-horizon DNS setups at some enterprises), simply revert to “automatic” in your router settings. Otherwise, it’s one of the highest-value-per-minute network improvements available to any home user.