Disclaimer: Safe Surfer Limited is in no way associated with Google LLC.
It’s easy with Safe Surfer to install an effective porn blocker on a Google Nest router. Along with protecting your privacy, we also use our own behind-the-scenes technology to block porn and other harmful online content. This guide will efficiently walk you through how to install protection.
If you get stuck, we’ve developed our protection apps to help.
Step 1: Install classic DNS
On your smartphone, open the Google Home app. Tap Wi-Fi. Tap the Settings cog icon. Tap the Advanced Networking menu. Tap the DNS Settings submenu. Tap the Custom option.
- For “Primary server”, use 104.197.28.121
- For “Secondary server”, use 104.155.237.225
Tap the Save option.
Verify the protection installation by visiting ExampleAdultSite.com inside a web browser. This is a safe website designated for testing if pornographic websites are being blocked. This site should be blocked.

Step 2: Sync IP (optional)
The Safe Surfer dashboard gives you access to comprehensive parental controls. The dashboard has a feature where you can create custom block rules for your Google Nest network.
Pro tip: this feature requires a Pro Surfer subscription and works best when you have a “static IP” (that is, a non-changing public IP address) with your Internet service provider. If you would like to use the sync IP feature rather than downloading our easy-to-use apps or getting a Wi-Fi Lifeguard router, contact your ISP regarding how to get a static IP.
Open the Devices menu (found on the left-hand sidebar) on the Safe Surfer dashboard. Click the “+ New Device” button.

Click Wi-Fi & network > Use my existing router. Enter a name, then click the Accept button.

Go back to the Devices menu and click the Connect button found under the device listing just made.

Click the “Plain DNS” field, then click the “Link IP” button. This will sync any custom block settings.

You can now open the Blocking menu, select the router device from the blue bubble, and block categories. Click the Save button once you’re done. These changes might take a minute to sync over.

Protection complete
Great work! The devices connected to your Google Nest network should now be protected. Want more options over what content can be accessed? Check out the app solutions available on our easy-to-use online dashboard.
If you would like to protect a different kind of device, visit our Guides page.