The fastest way depends on what you're using

Blocking a website means preventing your device or network from loading it. The method you use depends on whether you want to block it on one computer, across all devices in your home, or just in your web browser. A browser extension works fastest if you only need to block one site on one device. A router setting blocks the site across every device connected to your WiFi. Parental controls on Windows, Mac, or your phone let you block multiple sites at once and usually require a password to undo.

The simplest approach for most people is a browser extension — it takes about two minutes and requires no passwords or technical setup. If you're trying to block sites for someone else (like a child), a router block or device-level parental control is harder to bypass.

Key Takeaways

  • Browser extensions like Freedom, Cold Turkey, or LeechBlock block websites instantly on Chrome, Firefox, or Edge, and you can unblock them anytime.
  • Router blocks prevent access from any device on your WiFi network, but require you to log into your router's settings using an admin password.
  • Windows Parental Controls and Mac Screen Time let you block websites across all apps on that device, not just the browser.
  • If you forget a password protecting your blocks, you may need to reset your device or router to remove them.

Blocking a website in your browser with an extension

This is the fastest method if you only need to block one or two sites on the device you're using right now. Open Chrome, Firefox, or Edge and search the extension store for "website blocker" — popular options include Freedom, Cold Turkey Blocker, and LeechBlock NG. Install the extension, then open it and add the website URL you want to block.

Most extensions let you set a schedule (block the site only during work hours, for example) or block it immediately. Some let you set a password so you can't unblock it without entering the password first — useful if you're trying to stay disciplined but not trying to block the site from someone else. The extension only works in that browser on that device, so if you use Safari on your phone, the block won't apply there.

Blocking websites across your whole home network

A router block prevents any device connected to your WiFi from reaching the blocked website. This works on phones, tablets, computers, and smart TVs. Open a web browser and type your router's IP address into the address bar — this is usually 192.168.1.1 or 192.168.0.1, but check the sticker on the back of your router if those don't work. Log in using the admin username and password (often "admin" and "admin" or "admin" and the WiFi password, but check your router's manual).

Once you're logged in, look for a section called "Parental Controls," "Access Control," "Website Filtering," or "Content Filtering" — the exact name varies by router brand. Add the website URL to the blocked list. The block takes effect immediately, but anyone on your network can see that the site is blocked (they'll get an error message instead of the website). If you forget the admin password, you'll need to reset the router to factory settings, which erases your WiFi password and all custom settings.

Blocking websites on Windows using Parental Controls

Windows Parental Controls block websites across all browsers and apps on that computer. Open Settings, go to Accounts, then select Family & other people. Click "Add a family member" and create a child account (or link an existing Microsoft account). Select that account, then click "App and game restrictions" or "Content restrictions."

Under "Websites," choose "Block inappropriate websites" or "Only allow these websites" depending on what you want. If you choose "Block inappropriate websites," Windows uses a filter to block adult content automatically. If you choose "Only allow these websites," you create a whitelist — only the sites you add can be visited. Set a password to prevent the account holder from changing these settings. The blocks apply whenever that account is logged in, but they don't apply to other user accounts on the same computer.

Blocking websites on Mac using Screen Time

Mac's Screen Time feature blocks websites and apps across the whole device. Open System Settings, go to Screen Time, and click "App Limits" or "Content & Privacy." Under "Content & Privacy," select "Websites" and choose "Limit Adult Websites" to use Apple's automatic filter, or "Custom" to add specific URLs to a block list.

Set a Screen Time passcode so the blocks can't be removed without the password. If you're setting this up for someone else, use a passcode they don't know. Screen Time blocks websites in Safari, Chrome, Firefox, and most other browsers. It does not block websites in apps like YouTube or TikTok — for those, you'll need to set app limits separately or use parental controls within the app itself.

Blocking websites on iPhone or iPad

Open Settings, go to Screen Time, and tap "Content & Privacy Restrictions." Turn on Content & Privacy Restrictions and set a passcode. Tap "Content Restrictions," then "Web Content," and choose "Limit Adult Websites" or "Specific Websites Only." If you choose "Specific Websites Only," you create a whitelist — add the sites that are allowed, and everything else is blocked.

This blocks websites in Safari and most web browsers. Apps like YouTube, TikTok, and Instagram are not affected by these settings — they have their own content filters inside the app. If you're setting this up for a child, use a passcode they don't know and don't write it down where they can find it. If you forget the passcode, you'll need to erase the device and set it up again.

Blocking websites on Android phones and tablets

Android doesn't have a built-in website blocker like iOS does, but you can use a third-party app or your router block. For a device-level block, download an app like "Net Nanny," "Qustodio," or "Google Family Link" from the Google Play Store. Most of these apps require you to create an account and set a PIN or password. Once set up, they block websites across all browsers on that device.

Google Family Link is free and works on any Android device linked to a Google account. Open Family Link, select the child's device, go to "Controls on Google Play," then "Manage all apps." Scroll down to "Web & App Activity" and turn on filtering. You can then block specific apps and websites. If you're using a third-party app, read the reviews first — some are more reliable than others, and some require a paid subscription for full features.

What to do if you forget your blocking password

If you set a password to protect your blocks and forget it, your options depend on where the block is set. For a browser extension, uninstall the extension and reinstall it — this removes all settings including the password. For Windows Parental Controls, log in as an administrator account and change the password from the Family & other people settings. For Mac Screen Time, you can reset the passcode using your Apple ID if you set that option when you created it.

For a router block, you'll need to reset the router to factory settings using the reset button on the back — hold it for 10 to 15 seconds. This erases all custom settings including your WiFi password, so you'll need to set up the router again from scratch. For iPhone or iPad, if you forget the Screen Time passcode, you'll need to erase the device and set it up again — there's no other way to remove it.

Frequently Asked Questions

Can someone bypass a website block I set up?

It depends on the method. Browser extensions are easy to bypass — anyone can uninstall them or use a different browser. Router blocks and device-level parental controls are harder to bypass but not impossible. A determined person can use a VPN to hide their traffic, use a mobile hotspot instead of your WiFi, or factory reset the device. If you're trying to enforce a block on someone else, have a conversation about why the block is there instead of relying only on technical barriers.

Will blocking a website slow down my internet?

No. Browser extensions and parental controls have no noticeable effect on speed. Router blocks may add a tiny delay (milliseconds) because the router has to check each request against the block list, but you won't notice it. The only time you might see a slowdown is if you're using a VPN to bypass blocks, because VPNs encrypt all your traffic and route it through another server.

Can I block a website on just one app, like YouTube?

Not directly — YouTube and other apps have their own content filters built in, but they don't let you block specific websites. YouTube has "Restricted Mode" in settings, which filters out mature content. TikTok and Instagram have "Family Pairing" features that let you set screen time limits and restrict certain content. For more control, use your device's parental controls or a third-party app designed for that purpose.

What's the difference between blocking a website and using a VPN?

Blocking prevents access to a website. A VPN hides your internet traffic from your internet provider and network — it doesn't block anything, but it can be used to bypass blocks. If your router is blocking a site, a VPN can make it appear as though you're connecting from a different network, which may let you reach the blocked site. VPNs are useful for privacy, but they're not a blocking tool.

Do I need to block a website if I just want to take a break from it?

Not necessarily. If you're trying to reduce time on a site, a browser extension with a timer might work better than a full block — it warns you when you've spent a certain amount of time and then blocks the site. Apps like Freedom and Cold Turkey Blocker have this feature. If you just want to remember not to visit, turning off notifications from that site or removing it from your bookmarks bar is often enough.