The quickest way to block a site on your phone depends on what you're using it for

If you want to stop yourself from visiting a site, your phone's built-in tools can do it — but the method differs between iPhone and Android, and what you're trying to block matters. Blocking a site to keep yourself focused works differently than blocking it to protect a child, and both are simpler than blocking it across your entire home network.

The fastest route for most people is your phone's native parental controls or screen time settings, which let you block specific sites without installing anything. If you need something stronger — a block that's harder to bypass — you'll need a third-party app. And if you want to block a site on every device in your house at once, you'll do it through your router instead of your phone.

Key Takeaways

  • iPhone users can block sites through Settings > Screen Time > Content & Privacy Restrictions, which requires a PIN to disable.
  • Android users can block sites through Digital Wellbeing & parental controls, or install a third-party app like Freedom or Cold Turkey Blocker.
  • Blocking a site on your phone only affects that device — to block it everywhere in your house, you need to set restrictions in your router's admin panel.
  • Built-in phone tools are easier to bypass than third-party apps, so choose based on whether you need a gentle reminder or a hard barrier.
  • Some sites require you to block them at the DNS level (through your internet provider's settings) if they use multiple addresses.

Blocking sites on iPhone using Screen Time

On iPhone, the native tool is called Screen Time, and it lives in Settings. Open Settings, tap Screen Time, then tap Content & Privacy Restrictions. You'll need to set a Screen Time passcode if you haven't already — this is a four-digit PIN that prevents you from turning off the restrictions yourself.

Once you've set the passcode, go back to Content & Privacy Restrictions and make sure it's toggled on. Then tap Allowed Apps and scroll down to find Web Content. Tap Web Content, then select Limit Adult Websites. This blocks adult sites by default, but you can add specific sites to a custom blocklist by tapping the "Always Allow" or "Never Allow" sections.

To add a specific site to your blocklist, tap Never Allow, then tap the plus sign and type the web address. You can block as many sites as you want this way. The block will stay in place until you remove it using your Screen Time passcode.

Blocking sites on Android using Digital Wellbeing

Android's built-in tool is Digital Wellbeing, found in Settings > Digital Wellbeing and parental controls. The exact path varies slightly by phone maker — Samsung calls it Digital Wellbeing, Google Pixel calls it Digital Wellbeing, and other brands may label it differently — but the concept is the same.

Open Digital Wellbeing, tap App timers or Focus mode (depending on your Android version), and look for an option to block apps or websites. Some Android versions let you block sites directly here; others require you to set up parental controls first. If you don't see a website-blocking option, go to Parental controls, set it up with a PIN, and then add sites to the blocklist from there.

If your phone doesn't have a built-in website blocker, or if you want something more restrictive, you'll need a third-party app. Freedom, Cold Turkey Blocker, and AppBlock all let you block specific websites and are harder to disable than the native tools.

Using third-party apps for stronger blocking

Third-party blocking apps work by taking control of your phone's network settings or by running in the background to intercept requests to blocked sites. They're more effective than built-in tools because they're harder to turn off without the app's own password.

Freedom and Cold Turkey Blocker are the most common choices. Both let you block specific sites, set schedules (so the block only applies during work hours, for example), and require a password to disable the block. Freedom costs about $7 per month or $40 per year; Cold Turkey Blocker is a one-time purchase of around $40. AppBlock is free but less full-featured.

Install the app, open it, and add the sites you want to block. Most apps let you create different blocklists for different times of day or different purposes. Set a password that you won't remember easily — something random, not your birthday — so you can't quickly disable it when you're tempted.

Blocking sites across your entire home network

If you want to block a site on every device in your house — not just your phone — you need to set it up in your router, not on individual devices. This is the only way to block a site for everyone on your WiFi at once, and it's also the hardest to bypass.

Log into your router's admin panel. You'll usually do this by typing 192.168.1.1 or 192.168.0.1 into a browser on a device connected to your WiFi, then entering your router's username and password (often "admin" and "admin" by default, though you should have changed this). Once you're in, look for a section called Parental Controls, Content Filtering, or Access Control.

Different routers have different layouts, so you may need to check your router's manual or search for "[your router model] how to block websites." Most routers let you enter a list of domains to block, and the block applies to all devices on that WiFi. You'll need to set an admin password to prevent someone from removing the block.

Why some sites are harder to block than others

Some websites use multiple IP addresses or domain names, which means blocking one address doesn't block the whole site. Social media platforms like Instagram and TikTok are common examples — they might use instagram.com, i.instagram.com, and several other addresses.

If you block a site and it still loads, the site is probably using a different address. You'll need to block multiple variations, or use a DNS-level block instead. DNS blocking works at your internet provider level rather than on your device, and it's more thorough but also harder to set up. Some routers have a DNS filtering option in their admin panel; others require you to change your DNS provider to something like Cloudflare's 1.1.1.1 or Quad9, which offer built-in filtering.

The difference between blocking for yourself and blocking for someone else

If you're blocking a site to keep yourself focused, a gentle tool like iPhone's Screen Time or Android's Digital Wellbeing is usually enough — the point is to create friction, not to make it impossible. You know your own password, so the block is more of a speed bump than a wall.

If you're blocking a site to protect a child or teen, use a tool where you control the password, not them. This means the native parental controls (where you set a separate parental PIN) or a third-party app where you're the account owner. Never use a tool where the person being blocked knows the password, because they can disable it.

For children, router-level blocking is the most effective because it blocks the site on every device, including phones that connect to your WiFi. Combine this with a conversation about why the block is there — blocking without explanation often leads to workarounds.

Frequently Asked Questions

Can someone bypass a block I set on my phone?

If they know your passcode or password, yes. If you're blocking for yourself, that's fine — you're the one who might want to bypass it. If you're blocking for someone else, use a password they don't know and don't write it down anywhere they can find it. Router-level blocks are harder to bypass because they require access to your WiFi admin panel.

Will blocking a site on my phone block it on my computer too?

No. Phone blocks only affect that phone. If you want to block a site across all your devices, set it up in your router instead, or install blocking apps on each device separately.

What if I block a site by mistake and need to unblock it?

Go back to the same place you added the block — Screen Time on iPhone, Digital Wellbeing on Android, or your router's admin panel — and remove it from the blocklist. You'll need your passcode or password. If you've forgotten the password, you may need to factory reset your phone or router.

Do I need to block a site if I just want to limit how much time I spend on it?

No. Both iPhone and Android have app timers that let you set a time limit on an app or website without blocking it completely. When you hit the limit, the app dims and asks if you want more time. This is less restrictive than blocking and works well if you want to use the site occasionally but not obsessively.

Can I block a site only during certain hours?

Yes, if you use a third-party app or your router's scheduling feature. Most blocking apps let you set a schedule so the block only applies during work hours, school hours, or bedtime. Your router's parental controls may also have a scheduling option — check your router's manual.