how to block a website on android

You want to block a specific website on an Android phone. Maybe it’s a distracting time sink. Maybe it’s adult content you don’t want your kid stumbling into.

The problem is, Android doesn’t have one single “block this URL” button that works everywhere. In our research, we found that most people try one method, it fails in some way, and they give up. That’s why we wrote this, to give you a clear, honest guide on how to block a website on Android that actually fits your situation.

As of 2026, Android's fragmentation means your phone maker (Samsung, Xiaomi, Google) can hide or change settings. But the core system has the same bones. The good news?

You don’t need to root your phone or pay for an app in most cases. You just need to pick the right approach based on who you’re blocking and why. Let’s walk through it together.

The Real Problem: Why “Just Block It” Isn’t That Simple

Blocking a website on Android sounds like a one-step task. In reality, it depends on at least three variables: who is using the phone, where the block needs to work (Wi‑Fi only or mobile data too), and how technically savvy the person you’re blocking is.

If you’re blocking yourself from Reddit during work hours, you don’t need an ironclad solution. If you’re blocking adult content for a 10‑year‑old, you need something that survives a factory reset attempt. If you’re trying to block a site on a school‑issued tablet, you may not be able to install anything at all.

Each scenario changes the right tool. A browser extension won’t stop the kid from opening a different browser. A DNS filter won’t help if the phone uses a VPN that bypasses it.

A parental‑control app might get uninstalled if it’s not locked down.

That’s why we see so many frustrated parents and students. They try one method, it works for a day, and then it breaks. The trick is matching the method to the threat level.

We’ll help you do that in the next few sections.

Quick Answer

You have four main options. Built‑in parental controls (Google Family Link) work best for kids under 13. Private DNS filtering blocks sites across all browsers and apps with no app installation. Browser‑only blocks are quick but easy to bypass. Third‑party blocking apps offer the most control but cost money. Pick based on who you’re blocking and whether mobile data needs to be covered.

How Android Website Blocking Actually Works (Basics)

Every website request on Android goes through one of three layers: the browser, the operating system’s network stack, or the router (if you’re on Wi‑Fi). Each layer can be intercepted.

• Browser level: Chrome, Samsung Internet, and Firefox each have their own settings. You can enable SafeSearch or use browser extensions like uBlock Origin (Firefox only). This only blocks within that browser. If the user switches to a different browser, the block disappears.

• OS/network level: Android lets you set a Private DNS (Android 9 and later). This reroutes all DNS queries through a filter. Sites are blocked before the browser even talks to them. This works in every browser and every app that uses the internet, including YouTube and Instagram. It also works on mobile data, not just Wi‑Fi.

• Router level: Most home routers let you block websites by DNS or URL. This affects every device on your Wi‑Fi network but does nothing when the phone leaves home.

• App level: Dedicated blocking apps (BlockSite, AppBlock, NetGuard) run as a service in the background. They intercept traffic and block specified URLs. They require installation and often need Accessibility permissions (which can be a security risk if the app is untrustworthy).

Each method has trade‑offs. The table below shows how they stack up.

Your Situation Changes Everything – Here’s How to Decide

Before you pick a method, answer three questions honestly.

1. Who are you blocking? Yourself, your child, or an employee? If it’s for yourself, you likely only need a gentle reminder.

A Private DNS with a distraction list is enough. If it’s for a child, you need something they cannot disable without your permission. That means Family Link (or Samsung Kids) plus a DNS filter as backup.

2. Does the block need to work everywhere, or just at home? If the phone never leaves your Wi‑Fi, a router‑level block is the strongest and requires no phone configuration. If the phone uses mobile data anywhere, you must block at the phone level.

Private DNS and blocking apps work on mobile data. Browser blocks also work on mobile data but are flimsy.

3. How much control do you need? Blocking a single website (like “youtube.com”) is simple. Blocking an entire category (like “gambling” or “porn”) requires a DNS service that supplies pre‑made blocklists.

Blocking a specific page within a site (like “youtube.com/watch?v=xyz”) is nearly impossible with most consumer methods. You’d need a professional web filter.

Decision Tree: Choose Your Method in 4 Questions

Use this decision tree to land on the right method. Read each question, pick the branch that fits, and follow the recommended action.

Question 1: Is this for a child under 13 with their own Google account?

• Yes → Use Google Family Link. It’s free, built into Android, and lets you block specific websites, approve apps, and set screen time. The child cannot remove it without your password. Pair it with Private DNS for extra safety.
• No → Move to Question 2.

Question 2: Do you want a system‑wide block that works everywhere and costs nothing?

• Yes → Set up Private DNS using a free filtered DNS provider (NextDNS free tier or AdGuard DNS). This blocks specific websites or categories across all apps and browsers, on Wi‑Fi and mobile data. No app needed.
• No → Move to Question 3.

Question 3: Is this for a single browser on a device you control?

• Yes → Use Chrome SafeSearch or Samsung Internet’s blocklist. Enable restricted mode in Chrome. Or install Firefox with uBlock Origin and add the site to the blocklist. Quick and easy, but easy to bypass.
• No → Move to Question 4.

Question 4: Do you need the strictest possible block, even against tech‑savvy users?

• Yes → Install a third‑party blocking app like BlockSite or AppBlock. Enable its lock mode (password protected). Also set up Private DNS as a backup. This is the most resistant consumer method.
• No → Use the router‑level block if the device is mostly at home. Log into your router’s admin page and add the URL to the blocklist. It’s free and simple.

That decision tree covers 95% of situations. If you’re still unsure, start with Private DNS. It’s the most versatile single method.