DNS Changer on Android: Private DNS vs Wi-Fi DNS vs DNS Changer Apps

A DNS changer on Android can mean three different things: Android’s built-in Private DNS setting, manually changing DNS on a Wi-Fi profile, or using a DNS changer application. They can all change which resolver handles domain lookups, but they do not work the same way.

Three ways to change DNS on Android

Method 1: Android Private DNS

Android 9 and later include Private DNS. In the manual provider mode, Android expects a DNS provider hostname such as dns.google or dns.quad9.net. Private DNS uses encrypted DNS transport and is intended to work across networks supported by the device.

Current Android Help recommends keeping Private DNS on when possible and notes that it secures DNS questions and answers only. It is not a VPN and does not hide all traffic.

Method 2: manually change DNS on a Wi-Fi network

On many Android devices you can edit a saved Wi-Fi network, open advanced IP settings and specify DNS 1/DNS 2 addresses. This is the classic way to enter values such as Google’s 8.8.8.8 and 8.8.4.4.

The disadvantage is scope: you may need to repeat the setup for every Wi-Fi network. Some Android interfaces also expose DNS fields only after switching the Wi-Fi profile to Static, which means you must preserve the correct local IP and gateway settings.

If the phone is Android 8, see Android 8 Private DNS: Does It Exist? before following Android 9+ tutorials.

Method 3: use a DNS changer app

A DNS changer application is useful when you want a faster way to switch between resolver profiles, test alternatives, work around older Android limitations, or combine DNS switching with diagnostic tools. Many no-root DNS changer apps use Android’s VPN service interface locally to direct DNS requests without requiring root access.

This does not mean every DNS changer is equivalent to Android Private DNS. The encryption protocol, DNS transport, logging behavior and interaction with an actual VPN depend on the app.

Private DNS vs DNS changer app

Use Private DNS when you have Android 9 or newer, your provider publishes a compatible hostname, and you want a simple system setting. Consider a DNS changer app when you need older-version support, quick profile switching, diagnostics, or features the standard Android settings do not expose.

Can a DNS changer improve speed?

It can improve DNS lookup response time if your current resolver is slow, distant or unreliable. It cannot increase the raw speed of your Wi-Fi, 4G or 5G connection. Measure resolver latency separately from internet bandwidth.

For that reason, pair DNS changes with repeated tests rather than assuming that Google, Cloudflare or another provider is universally fastest. Our Android DNS benchmark guide explains a repeatable test process.

Does changing DNS change your public IP?

No. A DNS resolver translates hostnames to IP addresses. Changing the resolver does not normally change the public IP assigned by your ISP or carrier. A VPN can change the apparent public IP because it routes traffic through another network; DNS alone does not.

What should you enter for Google DNS?

• Traditional DNS fields: 8.8.8.8 and 8.8.4.4
• Android Private DNS provider hostname: dns.google

See our Google Public DNS reference for IPv6 values and testing advice.

SSM Apps DNS tools

DNS Changer & Net Speed Test focuses on Android DNS switching and network testing, while DNS Changer Pro & Speed Test provides the Pro product experience. If you are deciding between them, see our SSM Apps DNS tools comparison.

Official references

• Google Public DNS configuration documentation
• Android Help: Private DNS and advanced network settings
• Android 9 Pie: built-in DNS-over-TLS support

Featured image: “Wi-fi router” by Solijon Solayev, via Wikimedia Commons, licensed under CC BY-SA 4.0.