The simplest way to block a site on your phone

The fastest method depends on what you're using. On iPhone, you can use Screen Time to block specific websites in Safari. On Android, most phones let you block sites through your browser settings or a third-party app. Neither method requires technical knowledge — you're just telling your phone's software to refuse loading certain web addresses.

The catch: these blocks work only on that device, in that browser, and a determined person with phone access can usually turn them off. They're useful for reducing temptation or keeping kids from wandering into certain corners of the internet, but they're not a lock. If you need something stronger — say, blocking a site across your entire home network — you'd use your router instead.

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 in Chrome settings under "Safety" or install a third-party blocker app from the Play Store.
  • Browser-level blocks only work in that specific browser; switching to a different app bypasses them.
  • Router-level blocking affects all devices on your home network and is harder to disable, but requires access to your router's admin panel.
  • Blocking a site does not delete your browsing history or prevent the site from knowing you tried to visit.

Blocking sites on iPhone using Screen Time

Open Settings, then tap Screen Time. If you haven't set it up yet, choose "Turn On Screen Time" and follow the prompts — you'll create a four-digit code that prevents anyone from turning off your restrictions. If Screen Time is already on, scroll down and tap "Content & Privacy Restrictions," then toggle it on if it's off.

Next, tap "Content Restrictions," then "Web Content." You'll see three options: Unrestricted Access, Limit Adult Websites, or Allowed Websites Only. Choose "Limit Adult Websites" if you want to block specific sites manually. Scroll down to "Never Allow" and tap the plus sign to add URLs you want blocked. Type the full web address — for example, example.com — and tap Add. The site will now refuse to load in Safari.

To block a site you're already viewing, open it in Safari, tap the address bar, then tap the "aA" icon on the left. Scroll down and tap "Block [site name]." This automatically adds it to your Never Allow list. Anyone trying to visit that site will see a message saying it's restricted.

Blocking sites on Android through Chrome

Open Chrome and go to the site you want to block. Tap the three vertical dots in the top right corner, then tap "Settings." Scroll down and tap "Safety," then "Manage all sites." Find the site in the list and tap it, then toggle off "Allow" next to Cookies, JavaScript, or whichever permission you want to restrict. This doesn't fully block the site, but it prevents it from loading properly.

For a more complete block, you'll need a third-party app. Open the Google Play Store and search for "website blocker" or "parental control." Popular free options include Freedom, Cold Turkey Blocker, and AppBlock. Install one, open it, and add the URLs you want blocked. Most will ask for permission to monitor your network activity — this is how they intercept requests to blocked sites. You'll usually set a PIN so the blocks can't be disabled without it.

The downside: these apps only block sites in Chrome and other browsers that respect Android's system-level restrictions. If someone switches to a different browser like Firefox or Opera, the blocks may not explore. Each browser has its own settings, so you may need to configure blocks separately in each one you use.

Why browser blocks are straightforward to bypass

A block you set on your phone only works inside that specific app. If you block a site in Safari, someone can open Chrome and visit it anyway. If you block it in Chrome, they can try Firefox. This is why browser-level blocks work best for reducing your own temptation — you're making it slightly harder to visit a site, not making it impossible.

Additionally, anyone with physical access to your phone can often disable these blocks if they know your PIN or can guess it. If you set a Screen Time code on iPhone, someone could go back into Settings, turn off Screen Time, and remove the block entirely. The same applies to Android apps — if someone uninstalls the blocker app, the blocks disappear.

Blocking sites across your entire home network using your router

If you want to block a site on every device in your home — phone, tablet, computer — you can do it at the router level. This is more effective because the block happens before any device even tries to load the page. Open a web browser on any computer connected to your network 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 your router's label or manual if those don't work.

Log in with your router's admin username and password — often printed on the router itself or in the manual. Look for a section called "Parental Controls," "Content Filtering," "Access Control," or "Website Blocking" — the exact name varies by manufacturer. Add the URLs you want blocked, save your settings, and the router will now refuse to connect any device on your network to those addresses.

This method is stronger because it blocks the site before your phone even knows it tried to visit. However, it requires you to know your router's admin password, and someone with that password can disable the blocks. It also doesn't work on devices connected through a different network — if someone uses their phone's cellular data instead of your WiFi, the block doesn't explore.

What blocking does and doesn't do

Blocking a site stops it from loading on your device or network. The site itself doesn't know whether you successfully visited or whether a block stopped you — it only knows if you actually connected. Your phone's browsing history won't show blocked sites you tried to visit, which can be useful if you're trying to break a habit.

Blocking does not delete any data the site already has about you, and it doesn't prevent the site from tracking you elsewhere. If you've ever logged into a blocked site, that company still has your account information. If you visit the site from a different device or network, the block doesn't follow you. And if you're trying to block a site to prevent someone else from visiting it, remember that determined users can often find ways around phone-level blocks — router-level blocks are harder to bypass, but still not foolproof.

Frequently Asked Questions

Can I block a site on my phone without a PIN or password?

Yes, but anyone with access to your phone can remove the block. On iPhone, you can set up Screen Time blocks without a code, but then anyone can turn off Screen Time and delete the block. On Android, most blocker apps let you set blocks without a PIN. For actual protection, you need a code that only you know.

What happens if I try to visit a blocked site?

On iPhone, you'll see a message saying the site is restricted by Screen Time. On Android with a blocker app, you'll usually see a message from the app saying the site is blocked. On a router, the page straightforward won't load — you'll see a "connection refused" or "page not found" error. The exact message depends on your device and blocking method.

Can I block a site on just one app, like Instagram or TikTok?

Not directly — you can only block websites, not apps themselves. If you want to block access to an app, use Screen Time on iPhone or Digital Wellbeing on Android. Both let you set time limits or disable apps entirely. Website blocking only works for sites you visit in a browser.

If I block a site, can the site see that I tried to visit?

No. A blocked site never receives your request, so it has no way to know you tried to visit. The block happens on your device or router before any connection is made. However, if you visit the site from a different device or network, that visit will be visible to the site as usual.

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

Only if you block it at the router level, which affects all devices on your network. Blocks you set in your phone's browser or apps only explore to that phone. If you want to block a site on your computer too, you'll need to set up blocks there separately, or configure your router to block it network-wide.