The simplest way to block a site on Android

You can block a website on Android using your phone's built-in Safe Browsing feature in Google Chrome, or by installing a free app that filters web traffic. The built-in method works only in Chrome and blocks sites you've already visited; the app method works across all browsers and can block sites before you reach them.

For most people, the Chrome method takes two minutes. If you need to block sites across multiple apps or want parental controls that prevent someone from unblocking sites, you'll need a separate app.

Key Takeaways

  • Chrome's Safe Browsing feature lets you block individual websites, but only within Chrome itself — other browsers won't see the block.
  • Third-party apps like OpenDNS, Mobicip, or NetNanny block sites across all browsers and can require a password to unblock.
  • Blocking a site in Chrome takes seconds; blocking across your whole phone requires installing an app and may slow your connection slightly.
  • If you're setting up parental controls, choose an app that lets you set a PIN so the person you're monitoring can't remove the block.

Blocking a website in Chrome only

Open Chrome and navigate to the website you want to block. Once the page loads, tap the three vertical dots in the top right corner and scroll down to find "Settings".

In Settings, tap "Site settings" and then "Blocked sites". Tap the plus sign and type the full web address — for example, example.com — then tap "Block". The site will now show an error message whenever you try to visit it in Chrome.

To unblock a site, return to the same menu, find the site in your blocked list, and tap the minus sign next to it. This method only affects Chrome; the site will still load in Firefox, Samsung Internet, or any other browser on your phone.

Blocking a site across all apps and browsers

If you need to block a site everywhere on your phone — not just in Chrome — you'll need to install a content filtering app. These apps work by routing your internet traffic through their own servers, which check every site you visit against a blocklist.

Popular free options include OpenDNS Home, Mobicip, and NetNanny. read one from the Google Play Store, open it, and follow the setup wizard. You'll be asked to create an account and choose which categories of sites to block (adult content, gambling, social media, and so on). Some apps let you add specific sites to your blocklist by URL.

After setup, the app runs in the background and blocks sites across Chrome, Firefox, Samsung Internet, and any other browser. The downside is that these apps may slow your connection slightly because every request passes through their servers.

Setting up parental controls with a PIN

If you're blocking sites to monitor someone else's phone — a child or a family member — choose an app that requires a password or PIN to change settings. This prevents the person from straightforward uninstalling the app or turning off the filter.

When you install the app, create a strong PIN that only you know. In the app's settings, make sure "Parental Controls" or "Admin Mode" is turned on; this locks anyone without the PIN out of the app's configuration. Test it by trying to uninstall the app or access settings without entering the PIN — you should be blocked.

Apps like Mobicip and NetNanny offer parent dashboards where you can see which sites were blocked and when, and you can add or remove sites from your phone without touching the monitored device. Check whether the app you choose offers this feature before you install it.

What happens when someone tries to visit a blocked site

In Chrome with Safe Browsing enabled, the person sees a red error page that says the site is blocked and explains why. They can tap "Back" to leave, but they cannot bypass the block without going into Settings and unblocking the site.

With a third-party filtering app, the experience depends on the app. Some show a similar error page; others silently drop the connection so the page never loads. If you've set a PIN, attempting to unblock the site will prompt for the PIN before allowing access.

Blocking sites on a work or school network

If you're on a network managed by your employer or school, the network itself may already block certain sites. This happens at the router or firewall level, not on your phone. You cannot unblock these sites from your device — the block is enforced by the network administrator.

If you think a site is blocked incorrectly, contact your IT department or network administrator. They can review the block and remove it if it was a mistake.

Frequently Asked Questions

Can someone unblock a site if I don't set a PIN?

Yes. If you install a filtering app but don't set a PIN, anyone with access to your phone can open the app and remove the block. Always set a PIN if you're trying to enforce the block on someone else's device.

Will blocking a site in Chrome block it on my computer too?

No. Chrome blocks are specific to each device. If you block a site on your Android phone, it will still load on your computer, tablet, or any other device. You would need to block it separately in Chrome on each device.

Do filtering apps work if someone uses a VPN?

It depends on the app and the VPN. Some filtering apps can detect and block VPN use if you've set a PIN, while others cannot. If preventing VPN bypass is important, check the app's documentation before you install it.

What's the difference between blocking a site and reporting it?

Blocking a site prevents you from visiting it. Reporting a site tells Google or your browser that the site is harmful, phishing, or contains malware — this helps protect other users. You can do both, but they serve different purposes.

Can I block a site on Android without installing an app?

Yes, but only in Chrome and only for sites you've already visited. If you need to block sites across all browsers or block sites before you visit them, you'll need to install a filtering app.